Refraction

Q.

The path of a ray of light coming from air passing through a rectangular glass slab traced by four students are shown as A, B, C and D in Figure. Which one of them is correct?

1. 

2. 

3. 

4. 

Q.

Pencil dipped in water appears bent due to refraction

1. True
2. False

Q.

The phenomenon of bending of light as it moves from one medium to another is known as:

1. refraction

2. reflection

3. dispersion

4. lateral inversion

Q.

Why does light refract?

Q.

The speed of light is maximum in
(a) glass (b) water (c) air (d) wood

Q. Question 7
State two differences between a convex and a concave lens.

Q.

Why do objects waver when seen on a really hot day?

Q. Law of refraction is also termed as ___

Q. What do you mean by:
(i) Ray of light
(ii) Beam of light [2 MARKS]

Q. What is refraction

Q.

The bending of light when it travels from one medium to another is called ___ .

1. Green

2. Black

3. White

4. Blue

Q.

Who discovered light? explain how?

Q.

Twinkling of stars is due to _____.

1. atmospheric refraction

2. diffraction

3. reflection

4. dispersion

Q.

Explain why a pencil half-submerged in water in an inclined position appears bent at the surface of the water.

Q. What is the difference between optical density and refractive index

Q.

The speed of light is maximum in
(a) glass (b) water (c) air (d) wood

Q. Law of refraction is also termed as ___

Q. The splitting of white light into its colored components is called _____.

1. Spectrum
2. Dispersion
3. Deviation
4. Refraction

Q. A man stands in front of a mirror of a special type.He finds that his image has a very small head, a fat body and legs of normal size.What can be the shapes of the three parts of the mirror?

Q. What is meant by 'refraction of light'? Draw a labelled ray diagram to show the refraction of light.

Q. Dispersion of light can be defined as the separation of a white light into its constituent colours.

1. False
2. True

Q. Dispersion of light can be defined as the separation of a white light into its constituent colours.

1. True
2. False

Q. Dispersion of light can be defined as the separation of a white light into its constituent colours.

1. False
2. True