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SC LIGHTS

Total questions: 112

Worksheet time: 57mins

Name
Class
Date
1.

What three things may happen to light that strikes an object? 

a)

The light may be reflected, transmitted or absorbed.

b)

The light may be reflected and refracted.

c)

The light may be absorbed and transmitted.

2.

______ is a copy of the object formed by reflected or refracted rays of light


a)

reflection

b)

object

c)

refraction

d)

image

3.

The two kinds of reflection are 

a)


transparent and translucent

b)

regular and diffuse

c)

opaque and translucent

4.

The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-

a)

absorbed

b)

stopped

c)

refracted

d)

reflected

5.

A student placed a pencil in a cup of water.  The pencil appears broken because

a)

light always travels in a straight line

b)

light makes the water in the glass evaporate

c)

light bends when it passes through water

d)

light reflects the pencil on the water's surface

6.

This shows the phenomenon known as....

a)

reflection

b)

mirror

c)

refraction

d)

focal point

7.

Angle between normal and the ray reaching the boundary is

a)

angle of refraction.

b)

angle of incident

c)

angle of reflection

d)

angle of incidence

8.

Glasses are a use of:

a)

reflection

b)

refraction

9.

Which of these provides the best explanation for why the pencil appears broken?

a)

The pencil absorbs the light rays that hit it.

b)

Light rays are bent by the water in the glass.

c)

Water reflects light rays away from the pencil.

d)

The surface of the water reflects the light rays.

10.

Light travels in straight lines until reflected by another object. Which illustration best shows the light being reflected?

a)

b)

c)

d)

11.

The concave mirror has an inverted area

a)

inward

b)

inward and outward

c)

outward

d)

none

12.

_____ mirrors are used as rear view mirrors in cars.

a)

concave

b)

plane

c)

convex

d)

none

13.

A rainbow can be seen in the sky when the sun is

a)

in front of you

b)

behind you

c)

overhead

d)

only the time when the sunrise

14.

When a Newtons disc is rotated at high speed , the colours of the disc would blend and give

a)

black colour

b)

no colour

c)

yellow colour

d)

white colour

15.

In this diagram, which is the angle of incidence?

a)

angle A

b)

angle B

c)

angle C

d)

angle D

16.

Light is known to behave in a very predictable manner. If a ray of light could be observed approaching and reflecting off of a flat mirror, then the behavior of the light as it reflects would follow a predictable law known as the law of reflection. Which diagram below illustrates the law of reflection?

a)

b)

c)

d)

17.

A ray of light is incident towards a plane mirror at an angle of 30-degrees with the mirror surface. What will be the angle of reflection?

a)

60o

b)

90o

c)

30o

d)


45o

18.

When light rays strike a rough surface, they are:

a)

scattered

b)

absorbed

c)

focused

d)

refracted

19.

The imaginary line perpendicular to a reflecting surface is called _____.

a)

crooked line

b)

angular line

c)

parallel line

d)

normal line

20.

The ray of light that strikes a reflecting surface is called ________.

a)

incident ray

b)

normal ray

c)

reflected ray

d)

none

21.

The angle produced as a source of light bounces off a reflecting surface is called ______

a)

angle of crookedness

b)

angle of incidence

c)

angle of reflection

d)

angle of bounce

22.

What is the line MN called in the given diagram
                               

a)

incident ray

b)

reflected ray

c)

reflecting surface

d)

normal

23.

what is the angle between the incident ray and the normal called as

a)

angle of incidence

b)

angle of convergent

c)

angle of reflection

d)

angle of divergent

24.

what is the angle between the reflected ray and the normal called as

a)

angle of incidence

b)

angle of convergent

c)

angle of reflection

d)

angle of divergent

25.

If the angle of incidence is 45 degree, what is the angle between the incident ray and reflecting surface

a)

45

b)

180

c)

90

d)

none

26.

What does incidence angle equal?

a)

reflection angle

b)

all angle

c)

refraction angle

d)

all of them

27.

straight lines that represent light waves


a)

rays

b)

reflection

c)

image

d)

visible light

28.

a copy of an object formed by reflected or refracted rays of light

a)

image

b)

regular reflection

c)

reflection

d)

difuse reflection

29.

Which of the following is not a source of light? 

a)

candle

b)

mirror

c)

caver's lamp

d)

sun

30.

What is A?

a)

Angle of incidence

b)

Incident ray

c)

Angle of reflection

d)

Reflected ray

31.

Law of reflection state that - The angle of incidence is .................. to the angle of reflection.

a)

equal

b)

half

c)

double

32.

What is reflection?

a)

Reflection is the bouncing  of light off the surface that it strikes on.

b)

Reflection is the bending of light off the surface that it strikes on.

c)


Reflection is the absorbing of light off the surface that it strikes on.

d)

Reflection is the scattering of light off the surface that it strikes on.

33.

When light hits an object, the rays can pass through it, bounce off it, or be absorbed by it. Light rays that bounce back are

a)

radiant

b)

refraction

c)

radar

d)

reflection

34.

Which of the following would reflect rather than refract light?

a)

magnifying glass

b)

prism

c)

mirror

d)

lens

35.

Convex mirrors produce ony

a)

real images

b)

virtual images

c)

inverted images

d)

virtual and real images

36.

The concave mirror has an inverted area


a)

inward

b)

outward

c)

inward outward

d)

none

37.

The outside of spoon acts as a

a)

plane mirror

b)

convex mirror

c)

concave mirror

d)

concave and convex mirror

38.

The shiny surface on the bell of a bicycle produces an erect and small image of objects.What kind of a spherical mirror is it?

a)

plane

b)

convex

c)

concave

d)

none

39.

An image produced by a ___ mirror cannot be obtained on a screen

a)

convex mirror

b)

plane and convex mirror

c)

concave mirror

d)

plane and concave mirror

40.

_____ mirrors are used as rear view mirrors in cars.

a)

concave

b)

plane

c)

convex

d)

none

41.

Which of the following does not use a concave mirror?

a)

dentist mirror

b)

rear view mirror in cars

c)

reflector in flashlight

d)

reflector in flashlight

42.

You are provided with a convex mirror, concave mirror, convex lens and a concave lens. You get an inverted image from

a)

both convex lens and concave lens

b)

both concave mirror and convex lens

c)


both convex mirror and concave mirror

d)

both convex and concave lens.

43.

The ray of light that strikes a reflecting surface is called ________.


a)

incident ray

b)

normal ray

c)

reflected ray

d)

none

44.

Objects which emit their own light are described as:

a)

luminous

b)

transparent

c)

non luminous

d)

translucent

45.

What is A?

a)

Angle of incidence

b)

Incident ray

c)

Angle of reflection

d)

Reflected ray

46.

What is the angle of REFLECTION?

a)

40

b)

30

c)

90

d)

25

47.

Which of the following would be described as LUMINOUS?

a)

earth

b)

fire

c)

wind

d)

water

48.

Which of the following is NOT a luminous object?

a)

sun and stars

b)

lamp

c)

moon

d)

candle flame

49.

An object which does not allow light to pass through it is described as:

a)

opaque

b)

transparent

c)

translucent

d)

reflection

50.

An object which allows light to pass through it partially is described as:

a)

translucent

b)

opaque

c)

transparent

d)

reflection

51.

An object which allows light to pass through it clearly is described as:

a)

translucent

b)

opaque

c)

reflection

d)

transparent

52.

What is E?

a)

image

b)

incident ray

c)

normal

d)

reflected ray

53.

what is D

a)

Angle of incidence

b)

Incident ray

c)

Angle of reflection

d)

Reflected ray

54.

Which of these statements is true?

a)

Light travels in straight lines.

b)

Light does not travel in straight lines

c)

Light is stopped when it meets a solid object.

d)

Light will only travel for about 2000km before it stops.

55.

What is reflection?

a)

Reflection is the 'bouncing' of light off the surface that it strikes on.

b)

Reflection is the bending of light off the surface that it strikes on.

c)

Reflection is the absorbing of light off the surface that it strikes on.

d)

Reflection is the opposing of light off the surface that it strikes on

56.

What is being transferred with a wave?

a)

matter

b)

energy

c)

medium

d)

water

57.

Which of the following properties makes a light wave different from a mechanical wave?

a)

A light wave slows down in a vacuum

b)

A light wave exists as a transverse wave

c)

A light wave is able to transmit energy

d)


A light wave can travel without a medium

58.

when i light is incident at an angle of 90.


a)

the refracted ray changes speed only

b)

the refracted ray changes speed and direction

59.

What color do we see when all light is refracted?


a)

red

b)

white

c)

black

d)

rainbow

60.

Which determines the color of an object?

a)

absorption

b)

reflection

c)

diffraction

d)

refraction

61.

Frosted glass is made of glass with an etched surface. How would you describe the glass as light travels through it?

a)

translucent

b)

opaque

c)

transparent

d)

diffraction

62.

Which object will absorb the most light?

a)

clear glass

b)

plastic wrap

c)

black paper

d)

stained glass

63.

The process happening in rainbow formation are

a)


refraction

b)

refraction and internal reflection

c)

internal reflection

d)

none of the above

64.

what is the correct order of the visible light spectrum?

a)

green blue red

b)

violet, blue, indigo, green, yellow, orange and red

c)

indigo, blue, violet, orange, yellow, green and red

d)

red, orange, yellow, green, blue, indigo and violet

65.

What are the three primary colors of light?

a)

Cyan, Green, Red

b)

Red, Green, Blue

c)

cyan yellow blue

d)

Yellow, Magenta,Red

66.

Which of the following statements is true of light?

a)

Light cannot travel in a straight line when it passes through two different media.

b)

An image formed by a plane mirror is the same size as the object.

c)

Light always travels in a straight line in air on a hot day.

d)

A light ray cannot be reflected along its original path when it falls on a curved mirror.

67.

You want to show children a magic trick. The trick involves changing a blue ball into a black ball by changing the stage lighting. The stage light(s) should be changed from white to ___________.

I. red

II. green

III. blue

IV. None of the above. The white light should remain.


a)


I only

b)

IV only

c)

I and II only

d)

I, II and III only

68.

If you are the stage manager of a concert required to produce a spotlight that is magenta in colour, what should you do?

a)

Shine red and blue light on to the same spot

b)

Shine green and red light on to the same spot.

c)


Shine blue and green light on to the same spot

d)

Shine blue and yellow light on to the same spot.

69.

White light cannot be formed by mixing ____________________.

a)

red, green and blue light

b)

cyan, yellow and magenta light

c)

magenta and green light

d)

blue and green light

70.

An object immersed in water appears closer to the surface than it actually is. This phenomenon is due to ________.

a)

reflection

b)

refraction

c)

dispertion

d)

absorption

71.

Light rays bend ___________.

a)

when travelling continuously in the same medium

b)


when crossing the boundary between two different media at an angle less than 90°

c)

when crossing the boundary between two different media at 90°

d)

None of the above

72.

Imagine you are a soldier on a battlefield advancing in on an enemy’s position. You are on the lookout for an enemy ambush behind you. Therefore, you need a tool that allows you to see a wide area behind you. Which of the following tools will you choose?

a)

concave mirror

b)

plane mirror

c)

convex mirror

d)

glass prism

73.

Name the type of lens which diverges a beam of parallel rays of light.

a)

convex

b)

concave

c)

both

d)

none

74.

Rohan is provided with a concave and convex mirrors & concave and convex lens. He wants an enlarged image. He can either use:

a)

concave mirror or concave lens

b)

convex mirror or convex lens

c)

concave mirror or convex lens

d)

convex mirror or concave lens

75.

Can you name the mirrors used as side mirrors in scooters?

(a)  

76.

Uneven surfaces show ________ reflection.

a)

reguler

b)

irreguler

c)

perfect

d)

informal

77.

What type of lens creates the image seen in the eyeglasses?

a)

convex

b)

reflection

c)

concave

d)

none

78.

A student is conducting an experiment with four different types of mirrors. Which mirror in the experiment converges light and UP CLOSE, produces an upright, magnified image of the candles? (hint: no two mirrors are the same

a)

1

b)

2

c)

3

d)

4

79.

A student is conducting an experiment with four different types of mirrors. Which mirror in the experiment is a convex mirror?

a)

1

b)

2

c)

3

d)

4

80.

What type of lens is used in the shown instrument?

a)

concave

b)

reflection

c)

convex

d)

reduction

81.

The side view mirrors on your car help shrink the image on both sides of the car, allowing you to see a larger field of view. What type of mirror is this?

a)

convex mirror

b)

convex lens

c)

concave mirror

d)

concave lens

82.

Convex mirrors cause light to spread out.

a)

T

b)

f

83.

A mirror with a flat surface is a plane mirror.


a)

T

b)

F

84.

a mirror with a surface that curves inward like the inside of a bowl

a)

Concave

b)

convex

c)

flat

d)

plane

85.

Smooth surfaces _______ a lot of light.


a)

reflect

b)

absorb

c)

bend

d)

twist

86.


Which color reflects all light?

a)

white

b)

red

c)

blue

d)

black

87.

Which color absorbs all light?

a)

white

b)

purple

c)

red

d)

black

88.

What does light do when it hits an object that it cannot pass through?

a)

it passes through

b)

it creates shadow

89.

Type of mirror found in a bathroom...

a)

plane

b)

concave

c)

convex

90.

Type of mirror used as a side mirror on a vehicle to provide a wide angle view...

a)

plane

b)

concave

c)

convex

91.

Type of mirror that can produce an inverted image...

a)

concave

b)

convex

c)

reflection

92.

ype of mirror used by a dentist to get magnified view of a patient's teeth...

a)

concave

b)

convex

c)

plane

d)

virtual

93.

Type of mirror that can produce a virtual image...

a)

plane

b)

concave

c)

convex

d)

all

94.

this is an example of

a)

refraction

b)

infraction

c)

difraction

d)

reflection

95.

This is tPool seems shallowerhe example of dispersion of light

a)

sky looks bright orange in the evening

b)

shadow

c)


rainbow

96.

How fast does light travel?

a)

1000 feet per second

b)

1000 miles per second

c)

10,000 miles per second

d)

186,000 miles per second

97.

Convex lens is also called as


a)

Diverging lens

b)

Plane lens

c)

Converging lens

d)

Power lens

98.

Which of the following objects is transparent to visible light?

a)

Glass

Paper

Wood

b)

Steel

Wood

Rubber

c)

Glass

Milky glass

Steel

d)

Lens

Pure water

Ice cube

99.

When we mix red light with a green light, what color is the result?

a)

Cyan

b)

Magents

c)

Yellow

d)

Violet

100.

Rear side mirror of a vehicle is using a

a)

Lens

b)

Concave mirror

c)

Plane mirror

d)

Convex mirror

101.

To help correct myopia, optician will prescribe a

a)

Cylindrical lens

b)

Positive lens

c)

Converging lens

d)

Diverging lens

102.

Apparent depth occur because of

a)

Reflection

b)

Dispersion

c)

Refraction

d)

Propagation

103.

Dentists use dental mirrors to better look at the patient's teeth. A dental mirror uses …….. to allow the dentist to enlarge the part of the tooth he sees

a)

Convex mirror

b)

Plane mirror

c)

Concave mirror

d)

Bronze

104.

Who discovered white light is a combination of many colors?

a)

James watt

b)

Shaun the sheep

c)

Johny yes papa

d)

Isaac newton

105.

Sonya played with torchlight and created a shadow puppet on the wall using her hand. Is she wants to make the shadow smaller, she needs to

a)

Move her hand closer to her face

b)

Use a bigger torch

c)

Move her hand away from the torchlight

d)

Mover her hand closer to the torchlight

106.

Which of the following colors have the highest frequency?

a)

Green

b)

Orange

c)

Yellow

d)

Violet

107.

A solar eclipse occurs when the positions of the earth, sun and moon are as follows

a)

Moon - sun - earth

b)

Earth - sun - moon

c)

Moon - earth - sun

d)

Earth - moon - sun

108.

Look at the image

The image of the letter F will be

a)

b)

c)

d)

109.

Law of reflection states that

a)

On reflection from a rough surface, the angle of the reflected ray is bigger than the angle of the incident ray

b)

On reflection from a smooth surface, the angle of reflection ray is smaller than the angle of the incident ray

c)

On reflection from a rough surface , the angle of the reflected ray is equal to the angle of the incident ray

d)

On the reflection from a smooth surface, the angle of the reflected ray is smaller than the angle of the incident ray

110.

Which he following is a biconvex lens

a)

b)

c)

d)

111.

Light ray will bend away from the normal line when travels from …… to ……

a)

Less dense , denser medium , medium

b)

Air ; water

c)

Denser ; less dense

d)

Water ; glass

112.

The image of a 4 cm object reflected from a convex mirror will appear

a)

Paler than the actual object

b)

Taller than the actual object

c)

Wider than the actual object

d)

Smaller than the actual object

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