Dispersion of Light

Q. The splitting of white light into seven colours is known as

1. reflection
2. refraction
3. interference
4. dispersion

Q.

The splitting of white light into seven colours is known as ___.

1. reflection

2. refraction

3. interference

4. dispersion

Q.

The splitting of white light into its component colors is called

Q.

What will happen when a beam of light strikes the marble floor if water is spread over it?

1. Regular Reflection

2. Diffused Reflection

3. Dispersion

4. Scattering of light

Q. Which of the following is used for splitting sunlight into seven colours?

1. Concave mirror
2. Plane mirror
3. Prism
4. Convex lens

Q. When a white light passes through a prism, it seperates into colours.

1. three
2. five
3. seven
4. nine

Q.

The phenomenon of the splitting up of white light into its component colours is called ___.

1. reflection

2. refraction

3. dispersion

4. absorption

Q. Which of the following is used for splitting sunlight into seven colours?

1. Plane mirror
2. Prism
3. Convex lens
4. Concave mirror

Q. Why does light split only into seven colours

Q. Assertion: A beam of white light gives a spectrum on passing through a hollow prism.
Reason: Speed of light outside the prism is different from the speed of light inside the glass prism.

1. Both assertion and reason are correct and reason is the correct explanation of the assertion
2. Both assertion and reason are correct, but reason is not the correct explanation of the assertion
3. Assertion is correct, but reason is incorrect.
4. Assertion is incorrect, but reason is correct.
5. Both assertion and reason are incorrect.

Q. You are given a disc divided into seven sectors with colours violet, indigo, blue, green, yellow, orange and red in them. What would be its colour when it is rotated rapidly? [2 marks]

Q. The phenomenon due to which light splits up into seven colours, on passing through an equilateral prism is called :

1. scattering of light
2. interference of light
3. dispersion of light
4. deviation of light

Q. Describe an experimental setup to show that sunlight can be split up into constituent colours and then convert it back to white light

Q. Which of the following is used for splitting sunlight into seven colours?

1. Prism
2. Convex lens
3. Plane mirror
4. Concave mirror

Q. Which of the following is used for splitting sunlight into seven colours?

1. Plane mirror
2. Concave mirror
3. Prism
4. Convex lens

Q. Which of the following is an example of dispersion of light ?

1. Lunar Eclipse
2. Formation of clouds.
3. Formation of Rainbow.
4. Mirage