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Worksheets

COLORS OF LIGHT

Total questions: 15

Worksheet time: 5mins

Name
Class
Date
1.

Which has the least energy among the colors of a rainbow?

a)

green

b)

orange

c)

red

d)

violet

2.

Violet is bent most among the seven colors because it has the ___________.

a)

highest frequency

b)

lowest frequency

c)

longest wavelength

d)

shortest wavelength

3.

Which of the following can separate white light into seven colors?

a)

box

b)

cellphone

c)

paper

d)

prism

4.

Nina sent an arrow beam of white light through a prism. As a result,

she observed the light dispersing into ___ colors.

a)

4

b)

3

c)

5

d)

7

5.

Rainbows are formed through ______.

a)

dispersion

b)

dispersion & reflection

c)

refraction

d)

dispersion, reflection & refraction

6.

What can prisms do?

a)

Change sunlight into a single color.

b)

Invert a light ray’s frequency and wavelength.

c)

Separate the incoming light into its constituent colors.

d)

Slow down light to few meters per second, when used back to back.

7.

For visible light, which property changes with color?

a)

wavelength

b)

frequency & period

c)

frequency & wavelength

d)

frequency, wavelength & period

8.

Which of the following colors has the highest energy?

a)

orange

b)

red

c)

violet

d)

yellow

9.

What refers to the bending of light as it passes from one medium into another?

a)

frequency

b)

reflection

c)

refraction

d)

wavelength

10.

Which of the following arrangements of visible light colors shows decreasing wavelength?

a)

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

b)

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

c)

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

d)

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

11.

What refers to the splitting of white light into seven different colors?

a)

dispersion

b)

refractive index

c)

reflection

d)

refraction

12.

Refractive Index is a ratio between the speed of light in vacuum and ____.

a)

speed of light in vacuum

b)

speed of sound in vacuum

c)

speed of light in a medium

d)

speed of sound in a medium

13.

Based on the colors of light, what color comes between red and yellow?

a)

indigo

b)

green

c)

orange

d)

violet

14.

What is the acronym used to remember visible light?

a)

YORGVIB

b)

ROYGVIB

c)

ROYGBIV

d)

BIVGROY

15.

Which has the greatest energy among the colors in a rainbow?

a)

violet

b)

red

c)

green

d)

yellow