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Worksheets

COLORS OF LIGHT

Total questions: 10

Worksheet time: 50secs

Name
Class
Date
1.

Which has the least energy among the colours 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 ______________.

a)

Four colors

b)

Three colors

c)

Five colors

d)

Seven colors

5.

Rainbows are formed through ____________.

I. Dispersion II. Reflection

III. Refraction

a)

I only

b)

I and II

c)

III only

d)

I , II, III

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?

I. Frequency

II. Period

III. Wavelnlength

a)

III ONLY

b)

I AND II

c)

I AND III

d)

I , II, AND III

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.

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

a)

Dispersion

b)

Refractive index

c)

Reflection

d)

Refraction