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WorksheetsClass 10th MCQ Test Paper - 3
Total questions: 120
Worksheet time: 2hrs 0mins
Rays from the sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?
15 cm in front of the mirror
30 cm in front of the mirror
between 15 cm and 30 cm in front of the mirror
more than 30 cm in front of the mirror.
For an object at infinity, a concave mirror produces an image at its focus which is
enlarged
virtual
erect
real, inverted and diminished
An inverted image can be seen in a convex mirror,
under no circumstances
when the object is very far from the mirror
when the object is at a distance equal to the radius of curvature of the mirror
when the distance of the object from the mirror is equal to the focal length of the mirror
A child is standing in front of a magic mirror. She finds the image of her head bigger, the middle portion of her body of the same size and that of the legs smaller. The following is the order of combinations for the magic mirror from the top.
Plane, convex and concave
Convex, concave and plane
Concave, plane and convex
Convex, plane and concave
In torches, search lights and headlights of vehicles the bulb is placed
between the pole and the focus of the reflector
very near to the focus of the reflector
between the focus and centre of curvature of the reflector
at the centre of curvature of the reflector
When a ray of light passes from an optically denser medium to a rarer medium, it
goes undeviated
bends away from the normal
bends towards the normal
None of these
Among identical spheres A and B having charges as - 5 C and - 16 C
- 5C is at higher potential
- 16 C is at higher potential
both are at equal potential
it cannot be said
Direction of conventional current is from
Negative terminal to positive terminal
Positive terminal to negative terminal
In any direction
In both the directions
Which of the following statements is true?
The total mass of the substance remains same in chemical change
Chemical change is permanent and irreversible
Physical change is temporary and reversible
All of these
Which of the following statements is not correct?
A chemical equation tells us about the substances involved in a reaction.
A chemical equation informs us about the symbols and formula of substances involved in a reaction
A chemical equation tells us about the atom or molecules of the reactants and products involved in a reaction
All are correct
A change is said to be a chemical change when-
Energy change occurs
New substances are formed
The change cannot be easily reversed
All statements are correct
HCl gas changes the colour of
dry litmus paper
wet litmus paper
Both dry and wet litmus paper
None of the above is correct
The poisonous effect of acid present in stings of bees and ants can be neutralised by use of a solution that contains
acetic acid
formic acid
sodium hydroxide
sodium chloride
A drop of liquid sample was put on pH paper. The colour of pH paper turned blue. The liquid sample could be
lemon juice
hydrochloric acid
sodium hydrogen carbonate
ethanoic acid.
Horn silver is
an oxide ore of silver
a sulphite ore of silver
a carbonate ore of silver
a chloride ore of silver
Brass is a mixture of
copper and zinc
copper and tin
copper, nickel and zinc
aluminium, copper and traces of Mg and Mn
The enzyme involved in the oxidation of ethanol to form vinegar is
zymase
oxidase
acetobacter
invertase
The number of isomers of an alkane with molecular weight 72 is :
2
3
4
5
According to Mendel's laws of inheritance
traits in human beings are related to the fact that both the parents have contributed practically amount of genetic material to the child.
each trait will be influenced by both maternal and paternal DNA.
for each trait there will be two versions in each child.
all these three statements describe the law of inheritance.
Which one is not a vestigial organ in man ?
Vermiform appendix
Plica seminuralis
Ear muscles
Epiglottis
When an organ is used it will develop and if it is not used, it weakens to become vestigial. Who could have said this theory ?
Darwin
Hugo de-Vries
Lamarck
Mendel
An ecosystem consists of
biotic component comprising living organisms
abiotic component comprising physical factors
Both (1) and (2)
None of these
If 112 = q × 6 + r, then the possible values of r are
1, 2, 3, 4
0, 1, 2, 3, 4, 5
0, 1, 2, 3
2, 3, 5
By Euclid's division lemma x = qy + r, x > y, the value of q and r for x = 27 and y = 5 are
q = 5, r = 3
q = 6, r = 3
q = 5, r = 2
cannot be determined
7 × 11×13 + 13 is a/an
prime number
composite number
odd number but not composite
none of these
For some integer m, every even integer is of the form
m
m + 1
2m
2m + 1
Prime factorisation of the denominators of the rational number 34.12345 is of the form :
2m × 5n where m, n are integers.
2m × 5n where m, n are positive integers.
2m × 5n where m, n are non-negative integers.
denominator has factors other than 2 or 5.
In a cricket coaching camp, 1200 children are trained out of which 900 are selected for various matches. Ratio of non-selected children to the total number of children is
300 : 120
4 : 1
1 : 4
120 : 300
In a quiz programme the ratio of correct answers to incorrect answers is 5 : 2. If 16 incorrect answers are given then the number of correct answers given is
80
40
20
30
Bhanu borrowed a certain sum of money at 12% per annum for 3 years and Madhuri borrowed the same sum at 24% per annum for 10 years. The ratio of their amounts is
1: 3
2 : 1
2 : 3
2 : 5
The difference in SI and CI on a certain sum of money in 2 years at 15% p.a. is ` 544. The sum is
Rs 6000
Rs 6200
Rs 6300
Rs 6400
Two bicyclists do the same journey by travelling respectively at the rate of 9 and 10 km an hour. The distance travelled when one takes 32 minutes longer than the other is
42 km
44 km
48 km
50 km
If p(x) = g(x) . q(x) + r(x), then degree of p(x) is equal to
product of degrees of g(x) and q(x).
product of degrees of g(x) and r(x).
sum of degrees of g(x) and q(x).
sum of degrees of g(x) and r(x).
The zeroes of the quadratic polynomial x2 + 99x + 127 are
both positive.
both negative.
one positive and one negative.
both equal.
If one of the zeroes of a quadratic polynomial of the form x2 + ax + b is the negative of the other, then it
has no linear term and the constant term is negative.
has no linear term and the constant term is positive.
can have a linear term but the constant term is negative.
can have a linear term but the constant term is positive.
If one factor of 5 + 8x - 4x² is (2x + 1) then the second factor is
(5 + 2x)
(2x - 5)
(5 - 2x)
- (5 + 2x)
The pair of linear equations 3x + 2y = 5; 2x - 3y = 7 have :
One solution
Two solutions
Many solutions
No solution
If two lines intersected by a transversal, then each pair of corresponding angles so formed is -
Equal
Complementary
Supplementary
None of these
An angle is 14° more than its complementary angle then angle is -
38°
52°
50°
None of these
If one angle of triangle is equal to the sum of the other two then triangle is -
acute triangle
obtuse triangle
right triangle
None
A cylindrical pencil of diameter 1.2 cm. has one of its end sharpened into a conical shape of height 1.4 cm. The volume of the material removed is
1.056 cm3
4.224 cm3
10.56 cm3
42.24 cm3
A conical tent has a floor area of 154 sq. m. Its height is 24m. How much canvas is required for the tent ?
500 sq. m.
550 sq. m.
700 sq. m.
450 sq. m.
If the radii of two concentric circles are 15 cm and 13 cm, respectively, then the area of the circulating ring in sq. cm will be
176
178
180
200
A tree 6 m tall casts a 4 m long shadow. At the same time, a flag pole casts a shadow 50 m long. How long is the flag pole?
75 m
100 m
150 m
50 m
A 25 m ladder is placed against a vertical wall of a building. The foot of the ladder is 7 m from the base of the building. If the top of the ladder slips 4 m, then the foot of the ladder will slide
5 m
8 m
9 m
15 m
A ladder is included to a wall making an angle of 30° with it. A man is ascending the ladder at the rate of 2 metres/ second. How fast is he approaching the wall?
2 m/s
1.5 m/s
1 m/s
2.5 m/s
A professor standing on one end of a football field observes the elevation of the top of a flood light tower at an angle of a. He then walks a distance equal to twice the height of the tower and finds that the elevation of the top of the top is now at an angle of 2a. What is the value of a?
30º
60º
15º
45º
Line formed by joining (-1, 1) and (5, 7) is divided by a line x + y = 4 in the ratio of
1 : 2
1 : 3
3 : 4
1 : 4
The area of a triangle with vertices (a, b + c), (b, c + a) and (c, a + b) is
(a + b + c)2
0
a + b + c
abc
The ratio in which the line 2x + y - 4 = 0 divides the line segment joining the points A (2, -2) and B (3, 7) is
3 : 7
4 : 7
2 : 9
4 : 9
If the distance between the points (2, -2) and (-1, x) is 5, one of the values of x is
-2
2
-1
1
The mid-point of the line segment joining the points A (-2, 8) and B (- 6, -4) is
(- 4, - 6)
(2, 6)
(- 4, 2)
(4, 2)
The probability expressed as a percentage of a particular occurrence can never be
less than 100
less than 0
greater than 1
anything but a whole number
Which of the following is the sample space when 2 coins are tossed?
{H, T, H, T}
{H, T}
{HH, HT, TH, TT}
None of the above
In the United States, 43% of people wear a seat belt while driving. If two people are chosen at random, what is the probability that both of them wear a seat belt?
86%
18%
57%
None of these
The mean of 11 numbers is 35. If the mean of first 6 numbers is 32 and that of last 6 numbers is 37, then the 6th number is equal to
28
29
31
None of these
Construction of a cumulative frequency table is useful in determining the
mean
median
mode
All three measures
In a frequency distribution, the mid value of a class is 10 and the width of the class is 6. The lower limit of the class is
6
7
8
12
Students of a class are preparing for a drill and are made to stands in a row. If 4 students are extra in a row, then there would be 2 rows less. But there would be 4 more rows if 4 students are less in a row. The number of students in the class is :
96
56
69
65
A bus starts from city X. The number of women in the bus is half of the number of men. In city Y, 10 men leave the bus and five women enter. Now, the number of men and women is equal. In the beginning, how many passengers entered the bus?
15
30
36
45
A number of friends decided to go on a picnic and planned to spend Rs. 96 on eatables. Four of them, did not turn up. As a consequence, the remaining ones had to contribute Rs. 4 each extra. The number of those who attended the picnic was ?
8
16
12
24
A company blends two varieties of tea from two different tea gardens, one variety costing Rs 20 per kg and other Rs 25 per kg, in the ratio 5 : 4. He sells the blended tea at Rs 23 per kg. Find his profit per cent :
5% profit
3.5% loss
3.5% profit
No profit, no loss
The sum of three numbers is 98. If the ratio of the first to the second is 2 : 3 and that of the second to the third is 5 : 8, then the second number is :
20
30
38
48
The monthly income of two persons are in the ratio of 4 : 5 and their monthly expenditures are in the ratio of 7 : 9. If each saves Rs 50 a month, then what are their monthly incomes ?
Rs 100, Rs 125
Rs 200, Rs 250
Rs 300, Rs 375
Rs 400, Rs 500
An iron cube of size 10 cm is hammered into a rectangular sheet of thickness 0.5 cm. If the sides of the sheet be in the ratio 1 : 5, then the sides are
20 cm, 100 cm
10 cm, 50 cm
40 cm, 200 cm
None of these
A student rides on a bicycle at 8 km/h and reaches his school 2.5 minutes late. The next day he increases his speed to 10 km/h and reaches the school 5 minutes early. How far is the school from his house?
1.25 km
8 km
5 km
10 km
Modern form of nationalism received its greatest boost during the :
Early middle age
French Revolution
American Revolution
None of these
The combined forces of Prussia and Austria defeated :
France
Denmark
Russia
None of these
A nation is described as community of people who believed that they have a common :
Homeland
Tradition
Historical development
All of these
Which of the following protest marches, challenged by Mahatma Gandhi?
Ahinsa (non-violence)
Satyagraha
Civil Disobedience
All of these
Which one of the following matches is incorrect?
Nelson Mandela - South Africa
Kwame Nkrumah - Italy
Mahatma Gandhi - India
All of these are correct
Assemble troops in rediness for active service was called :
Allegiance
Perpetrated
Mobilise
None of these
A secret society formed by Charcoal burners maily in Italy was called :
Carbonari Society
Charcoal Society
Holly Society
None of these
Unification of Germany took place between which period?
1860 to 1871
1870 to 1871
1856 to 1871
1866 to 1871
Which one of the following choices described effect of printing on religious ideas in Europe?
Printing brought about a new intellectual atmosphere and helped spread the new ideas that led to reformation.
It worked against Christian religion
It led to serious riots
It led to disorder in society
Who of the following published first weely magazine Bengal Gazette in India in 1780?
James Augustus Hickey
Warren Hastings
Gangadhar Bhattacharya
Ram Mohan Roy
Which one of the following woman writer did not write during ninetieth century on woman issue ?
Ismat Chugtai
Kailashbashini Debi
Tarabai Shinde
Pandita Ramabai
Which one of the following is appropriate choice which helped in growth of novels in modern society?
The readers were drawn into story and identified with lives of fictious character
The story was lengthy and good
The story was enthralling in novels
It infuse new spirit of reading
Name the third kind of government that exists in Belgium.
Community government
Ethnic government
Local self government
People's government
Where is the headquarters of European Union located ?
Venice
Geneva
Hague
Brussels
Which of these matters does not come under the family laws?
Taxation
Marriage
Divorce
Inheritance
Democracy has been successful in eliminating economic inequality
Rapidly
Slowly but steadily
It is not successful in eliminating inequality
None of these
Studies on political and social inequalities in democracy show that
Democracy and development go together
Inequality exist in democracy
Inequality does not exist under dictatorship
Dictatorship is better than democracy
Is it true that the cost to the borrower of informal loans is much higher?
Yes
No
Might be
Can't say
Which of the following statements is best supported by this passage?
The value of a diamond is in large part dependent on the way it is prepared
The natural cleavage will determine the value of a diamond
Translucent and transparent diamonds are considered the most valuable
It is easy to retrieve diamonds from underground mines.
Which of the following most probably was the subject of the paragraph preceding the passage?
A discussion of scarce diamonds
A discussion of bot and carbonado
A discussion of various colours of diamonds
A discussion of means of mining diamonds
The relationship between the cleavage and translucence of a diamond most similar in relationship between the style of a car and its:
colour
size
price
speed
The word 'genuine' could best be replaced by which of the following?
Palpable
Spurious
Real
Accurate
Which of the following statements best describes the organisation of this passage?
Comparison and Contrast
Chronological Order
Statements and Illustration
Cause and Result
Which of the following words means unlawful?
elicit
draw
illegitimate
illicit
Which one of the following words means 'weary'?
Tired
Fatigued
Sentimental
Emotional
Conservation of resources means-
Planning of resources
Depletion of resources
Extraction of resources
Protection of resources
On the basis of exhaustibility, resources have two types-
Renewable and non renewable
Biotic and abiotic
Potential and developed
Individual and community based
Khetri mines of Rajasthan is famous for-
Gold
Bauxite
Copper
Mica
Which places are connected by NH1 ?
Delhi and Amritsar via Ambala.
Delhi and Amritsar via Fazika.
Delhi and Calcutta via Mathura.
Delhi and Bombay via Jaipur.
In rural areas, what is the major reason behind taking the credit?
Telecommunication
Crop production
Establishment of factory
For buying luxuries
The cost to the borrower of informal loans is much higher. Is it true?
Yes
No
Might be
Can't say
Which of the following statements is best supported by this passage?
The value of a diamond is in large part dependent on the way it is prepared
The natural cleavage will determine the value of a diamond
Translucent and transparent diamonds are considered the most valuable
It is easy to retrieve diamonds from underground mines.
Which of the following most probably was the subject of the paragraph preceding the passage?
A discussion of scarce diamonds
A discussion of bot and carbonado
A discussion of various colours of diamonds
A discussion of means of mining diamonds
The relationship between the cleavage and translucence of a diamond most similar in relationship between the style of a car and its:
colour
size
price
speed
The word 'genuine' (underlined) could best be replaced by which of the following?
Palpable
Spurious
Real
Accurate
Which of the following statements best describes the organisation of this passage?
Comparison and Contrast
Chronological Order
Statements and Illustration
Cause and Result
ADVICE
council
counsel
practice
proposal
QUOTE
sight
sigh
sue
cite
ATTACHMENT
Affinity
Influence
Causation
Appendage
GULLIBLE
credible
believable
credulous
fallible
JEALOUS
obvious
atrocious
envious
ferocious
PATRONAGE
donation
support
espionage
beneficiary
FOUND
see
establish
realize
search
EFFICACY
delicacy
ruthlessness
efficiency
solemnity
PERSUADE
assure
opinionated
convince
cheat
PHENOMENAL
incidental
eventful
natural
extraordinary
HONORARY
honest
dignified
unpaid
praiseworthy
TRANSCEND
lower
climb
energise
cross
EXEMPT
duty
provide
relieve
forgive
IMMINENT
eminent
immediate
future
impending
INTELLECT
Rationality
imbecility
Insanity
Reverie
SPECTACLE
Pageant
show
Mystification
Panorama
Quote is what one of the following words means;
sight
sigh
sue
cite
Which of the following words means unlawful
elicit
draw
illegitimate
illicit
