Worksheetsmsm 10th
Total questions: 100
Worksheet time: 1hrs 14mins
If two positive integers p and q can be expressed’ as p=ab2 and q = a3b; where 0, b being prime numbers, then LCM (p, q) is equal to
(a)
HCF of 441,567and693 is
1
441
126
63
HCF of 45 and 105is 15 then LCM is
(a)
If the HCF (16,y) =8 and LCM(16,y)=8 then y=
48
8
16
24
For some integer p every odd integer of the form
2p+1
1p
2p
None of these
If the LCM(77,99)=693, HCF (77,99) is
22
9
11
7
HCF of 8,9,25 is
8
9
25
1
987/10500 have the decimal expansion of the form
Terminating
Non-terminating
Non-terminating and non repeating
None of these
HCF of 8,9,25 is
8
9
25
1
HCF of 45 and 105 is 15 then LCM is
15
105
315
215
If HCF (16,y)=8,LCM(16,y)=8 then value of y is
16
8
48
24
For postive integer a and 3 there exists a unique integer q and r such that a=3q+r where r can be
0 to 2
1 to 3
Greater than 4
None of these
The farmers have 490 kg ,588 kg and 882 kg of wheat respectively .find the maximum capacity of a bag so that the wheat can be packed exact number of bags
350kg
200kg
290kg
98kg
The zeroes of the quadratic polynomial x2 + 7x + 10 are
-4.-3
2,5
-2,-5
-2,5
The zeroes of the quadratic polynomial x2 - 27 are
+3√3,− 3√3
3,3
9,9
+√3, − √3
A quadratic polynomial can have at most ______ zeroes.
0
1
2
INFINITE
A quadratic polynomial, whose zeroes are −2 and 4, is
𝑥² – 2𝑥 + 8
𝑥² + 2𝑥 + 8
𝑥² – 2𝑥 - 8
2𝑥² – 2𝑥 + 24
The number of polynomials having zeroes as −2 and 5 is
1
2
3
MORE THAN 3
The sum and the product of the zeroes of polynomial 6x2 – 5 respectively are
0, −6 /5
0, 6/ 5
0, 5/6
0, -5/6
The zeroes of the quadratic polynomial 𝑥 2 + 𝑘𝑥 + 𝑘 where k ≠ 0,
cannot both be positive (b) cannot both be negative (c) are always unequal (d) are always equal
cannot both be negative
are always unequaL
are always equal
If the zeroes of the quadratic polynomial 𝑎𝑥² + 𝑏𝑥 + 𝑐, where 𝑐 ≠ 0, are equal, then
c and a have opposite signs
c and b have opposite signs
c and a have the same signs
c and b have the same signs
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
has no linear term and the constant term is positive
can have a linear term but the constant term is positive
If one zero of the quadratic polynomial 𝑥² + 3𝑥 + 𝑘 is 2, then the value of 𝑘 is
10
-10
5
-5
If one zero of the quadratic polynomial x2 − 4x + 1 is 2 + √3, then the other zero is
−2 + √3
−2 - √3
2 -√3
√3 +1
If 2 is a zero of the polynomial p(x) = k x2 +3 x + k, then the value of k is
5/6
-5/6
6/5
-6/5
If one of the zeroes of the quadratic polynomial (𝑘 – 1)𝑥 2 + 𝑘𝑥 + 1 is – 3, then the value of 𝑘 is
4/3
-4/3
2/3
-2/3
If the sum of the zeroes of the quadratic polynomial kx2 + 2x + 3k is equal to their product, then k is equal to
1/3
-2/3
-1/3
2/3
. If zeroes of p(x) = 2x2 − 7x + k reciprocal of each other find the value of k?
1
2
3
4
If the zeroes of a quadratic polynomial 𝑝(𝑥) = 𝑎𝑥2 + 𝑥 + 𝑎 are equal, then the value of 𝑎 is
1/2
-1/2
+1/2. -1/2
1,-1
A quadratic polynomial whose one zero is 6 and sum of the zeroes is 0, is
x2– 6x + 2
x2– 36
x2– 6
x2– 3
If α, β are the zeroes of the polynomial x² – 16, then αβ (α + β) is
0
4
-4
16
If 2 and 3 are zeroes of polynomial 3x2 – 2kx + 2m, then the value of k and m are, respectively
9/2,15
15/2,9
9,15/2
15, 9
If zeroes α and β of a polynomial x2 – 7x + k are such that α − β = 1, then the value of k is
21
12
9
8
The intersction point of x+y=10 and x-y=2 is
(6,4)
(-6,2)
(2,3)
(4,6)
if a1x+b1y+c1=0 and a2x+b2y+c2=0 are in consistent then,
If a pair of equations is consistent then the lines will be
always intersecting
parallel
always coincident
intersecting or coincident
If a pair of equation is inconsistent ,then the lines will be
parallel
always coincident
always intersecting
both coincident and intersecting
The solution of the equations x + y = 14 and x - y = 4 is
x = 5 and y = 9
x = 10 and y = 4
x = 4 and y = 10
x = 9 and y = 5
The equations 4x + 3y – 5 = 0 and 12x + 9y = 15 represent
No solution
Infinite many solution
Unique solution
2 solutions
Is (1,10) a solution to
y=7x+5
y=x+9
yes
no
if a1x+b1y+c1=0 and a2x+b2y+c2=0 has infinitely many solutions then,
.If the sum of two number is 41 and their product is 400.then the numbers are
25,16
28,13
20,20
40,10
3 years ago age of Amaresh is y, what is the age of him 2 years from now
y+5
y+3
y-5
y-3
Differece of two supplementary angles is 600, then the smaller angle is
600
1000
800
1200
General form of the linear equations in one variables is
ax+b
ax+by+c=0
ax+by+c
ax+b=0
if x+y=30 and x-y= 20 then x=
(a)
A linear equation indicates a
parabola
circle
line
plane
x= 5 is a line
Parallel to X-axis
Parallel to Y-axis
Passes through origin
passes through (0,5)
A chemical reaction has taken place can be represented by which of the following condition?
(i) Evolution of gas
(ii) Heat released
(iii) Change in color
(iv) All the above
A chemical equation is said to be balanced if number of
(i) Compounds are same in both side
(ii) Molecules are same in both side
(iii) Number of atoms is same in both side
(iv) Number of electrons are same in both side
Write values of a,b and c if following chemical reaction is balanced .
aMg + bO2 → cMgO
(i) a=2, b=1, c=2
(ii) a=1, b=1, c=2
(iii) a=2, b=1, c=1
(iv) a=2, b=2, c=2
Which of the following reactions satisfies this condition? :
Iron nails kept with dilute sulphuric acid and ferric sulphite solution is formed and hydrogen gas is released.
(i) 2Fe(s) + 3H2 SO4(l)→ Fe2 (SO4)3(l) + 3H2(g)
(ii) 2Fe(s) + 2H2SO4(aq) → Fe2(SO4)3(s) + 4H2 (g)
(iii) 2Fe(s) + 2H2SO4 (aq) → 3Fe2(SO4)3(aq) + 2H2(g)
(iv) 2Fe(s)+3H2SO4 (aq) → Fe2(SO4)3 (aq) + 3H2 (g)
Calcium oxide reacts with water to form calcium Hydroxide. Which type of reaction is this?
(i) Combination and endothermic reaction
(ii) Combination and exothermic reaction
(iii) Decomposition and Endothermic reaction
(iv) Decomposition and exothermic reaction
On thermal decomposition of lead nitrate, nitrogen dioxide gas is evolved. How it presence can be verified?
(i) It will turn lime water milky
(ii) Rotten egg odour
(iii) Brown fumes can be observed
(iv) Reddish fume is observed
The electrolytic decomposition of water gives H2 and O2 in the ratio of :
(a) 1 : 2 by volume
(b) 2 : 1 by volume
(c) 8 : 1 by mass
(d) 1 : 2 by mass
We store silver chloride in a dark coloured bottle because it is
(a) a white solid
(b) undergoes redox reaction
(c) to avoid action by sunlight
(d) none of the above
What is A and B ?
A - Hydrogen
B - Nitrogen
A - oxygen
B - Hydrogen
A - Hydrogen
B - oxygen
A - Nitrogen
B - Hydrogen
What is the color of ash formed in this experiment ?
Black
Brown
White
Yellow
The bouncing back of light in the same medium after skriking smooth, polished surface is called
a. Reflection of light
b. Refraction of light
c. Scattering of light
d. Dispersion of light
The angle between the incident ray and the normal ray is called
a. Angle of abnormality
B. angle of refraction
C. angle of incidence
D. angle of reflection
The reflection by the rough surfaces is called
Regular reflection
Irregular reflection
Regular refraction
Irregular refraction
Which one among the following is correct about laws of reflection
Incident ray, normal and reflected ray in different plane
Incident ray and normal lie in same plane while reflected ray in different plane
Incident ray and reflected ray lie in different plane while normal lie in opposite plane
Incident ray, normal and reflected ray all lie in same plane
A light ray strikes a reflective plane surface at an angle of 54° with the surface.
a. Calculate the angle of incidence
b. Calculate the angle of reflection
c. Calculate the angle made by the reflected ray and the surface
d. Calculate the angle made by the incident and reflected rays
A 36
B 36
C 54
D 72
A ray of light that strikes a plane mirror PQ at an angle of incidence of 30°, is reflected from the plane mirror and then strikes a second plane mirror QR placed at right angles to the first mirror. The angle of reflection at the second mirror is :
a 30°
B 45°.
C 60°
D 90°
The angle of incidence for a ray of light having zero reflection angle is
0°
30°
45°
90 °
An object is placed at a distance of 0.25m in front of a plane mirror. The distance between the object and image will be
0.25m
1.0m
0.5m
0.125m
What is the magnification of the images formed by plane mirrors.
a. Unity
B Two
C. Three
D. Zero
An object is placed 20 cm in front of a plane mirror. The mirror is moved 2 cm towards the object. The distance between the position of the original and final images seen in the mirror is
2cm
4cm
10cm
22cm
Centre of the sphere of which the mirror is a part is called
Radius of curvature
Pole
Principal axis
Centre of curvature
which is the following is correct for concave mirror
It is a diverging mirror
It is a converging mirror
Can be both converging and diverging
Can’t say
Focal length of a plane mirror is
At infinity
Zero
Negative
None of these
Calculate the focal length of a spherical mirror if radius of curvature is 20cm
20cm
10cm
15cm
At infinity
A concave mirror of focal length 20cm forms an image having twice the size of object. For the virtual position of image, the position of object will be at
25cm
40cm
10cm
At infinity
3.THE FEATURES OF RESPIRATORY ORGAN IS:
THIN AND DELICATE
LARGE SURFACE AREA
HIGHLY VASCULARISED
ALL OF THE ABOVE
where does absorption take place
stomach
mouth
small intestine
large intestine
1.THE ENERGY CURRENCY OF THE CELL IS FOUND IN
(a)
- THE END PRODUCT OF ANAEROBIC RESPIRATION IS
ETHANOL , CARBON DIOXIDE AND ENERGY
ETHANOL ,WATER AND ENERGY
ETHAANOL, CARBON DIOXIDE AND ENERGY
ALL OF THE ABOVE
NAME THE STRUCTURE THAT IS LOCATED BETWEEN LEFT ATRIUM AND LEFT VENTRICLE WHICH PREVENTS THE BACK FLOW OF BLOOD.
SEMI LUNAR VAVLE
TRICUSPID VALVE
BICUSPID VALVE
BICUPSID VALVE
BLOOD IS A FLUID CONNECTIVE TISSUE THAT HELPS IN
TRANSPORT OF OXYGEN
TRANSPORT OF NUTRIENTS
TRANSPORT OF HORMONES
ALL OF THE ABOVE
LARGE AMOUNT OF ENERGY IS PRODUCED DURING
(a)
2 tubes entering the lungs
pharynx
larynx
bronchus
bronchioles
smaller branches in lungs
pharynx
epiglottis
bronchioles
alveoli
exchange of gases
bronchus
alveoli
larynx
pharynx
________ is the tube that connects the larynx to the lungs.
alveoli
larynx
pharynx
trachea
The ___________ is the dome shaped muscle below the lungs
diaphragm
rib
alveoli
trachea
The correct word equation for aerobic respiration is
carbon dioxide + water (+ energy) → glucose + oxygen
water + oxygen → carbon dioxide + glucose (+ energy)
glucose + oxygen → carbon dioxide + water (+ energy)
glucose + water → carbon dioxide + water (+ energy)
Cellular respiration is
a chemical reaction and NOT the same as breathing
the movement of air in and out of the lungs
not a chemical reaction
During heavy exercise when supply of oxygen to our muscles is insufficient food breakdown is by
anaerobic respiration
aerobic respiration
cellular respiration
What are the products of anaerobic respiration in a human cell?
Energy and Lactic Acid
Lactic Acid
Lactic Acid and Carbon Dioxide
Carbon Dioxide and Water
