Dispersion of Light

Q. After being dispersed from a prism, white light splits into seven colours. Which colour will be refracted the most?

1. Green
2. Red
3. Blue
4. Violet

Q.

Light rays get refracted ______ when they pass from air to glass prism.

1. away from the normal

2. towards the normal

3. along the normal

4. along the air-glass interface

Q.

Statement 1: When a white light ray passes through a prism it disperses into seven different colours, and this phenomenon is called dispersion.

Statement 2: Refraction depends upon the wavelength of light and since different colours have different wavelengths, they are refracted at a different angle.

1. Statement 1 and 2 are correct but statement 2 is not the correct reason of statement 1.

2. Statement 1 and 2 are correct and statement 2 is the correct reason for statement 1.

3. Both statements are wrong.

4. Statement 1 is correct but statement 2 is incorrect.

Q.

As light rays travel from air into a glass prism, they deviate away from the normal.

1. True

2. False

Q.

The process by which a beam of white light splits into its constituent colours is known as

1. dispersion

2. scattering

3. reflection

4. tyndall effect

Q.

What is the order of the seven colours (from most deviated to least deviated) that we see after dispersion through a glass prism?

1. Violet, indigo, red, green, blue, orange, yellow

2. Violet, indigo, blue, green, yellow, orange, red

3. Red, orange, yellow, violet, indigo, blue, green

4. Red, yellow, indigo, blue, violet, green, orange

Q.

The splitting of white light into its constituent colors is called dispersion.

1. True

2. False

Q.

Dispersion of light can be defined as the separation of a visible light beam into its constituent colours.

1. True

2. False

Q.

Dispersion of light can be defined as the separation of white light beam into its seven constituent colors.

1. True
2. False

Q. Rakesh wanted to do the prism experiment. He took a prism and passed monochromatic light through it. Which phenomenon would he observe?

1. Dispersion
2. Refraction
3. Reflection
4. Diffraction