Class 10 | Refraction Of Light

Flash Card

The actual position of star is slightly ........... than apparent position of star

1/34

A ray of light makes an angle of 50° with the surface S1 of the glass slab. Its angle of incidence will be............... .

2/34

What is the reason for the twinkling of stars?

3/34

A laser beam enters from air to soap solutions in water then ................ .

4/34

Refractive index depends on the

5/34

When a ray of light enters a rarer medium from a denser medium, it gets partially reflected i.e. part of the light gets reflected and comes back into the denser medium obeying the laws of reflection. This is called .................. reflection.

6/34

The refractive index of hot air is

7/34

Coin placed at the bottom of vessel when viewed from sides becomes visible only after filling water upto certain height. This is due to phenomenon of ........ .

8/34

The process of separation of light into its component colour while it is passing through a medium is called

9/34

Choose the correct statement regarding the incident ray, refracted ray and normal drawn at the point of incidence.

10/34

............. coloured ray deviates the most during the dispersion of light through a prism.

11/34

............. coloured ray deviates the least during the dispersion of light through a prism.

12/34

When a light ray makes an angle of 90° while entering a glass slab from air, it

13/34

Dispersion of light and mirage are two examples of the phenomenon where ............ takes place.

14/34

Which of the following remains unchanged during refraction of light?

15/34

For a given pair of media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is.............. .

16/34

The unit of refractive index is

17/34

Which of the following cannot be used to study refraction?

18/34

The velocity of light is ............. in different media.

19/34

Substances in the order of optically denser to optically rarer medium are:

20/34

How to convert light dispersed by prism again into white light?

21/34

When a ray of light enters a rarer medium from a denser medium, for a particular value of i for which, the value of r becomes equal to 90°, is called the ..............angle.

22/34

For the refraction of light through a glass slab angle of incidence is .............. angle of emergence.

23/34

During formation of mirage, the density of air

24/34

The speed of light in air is

25/34

............. is formed as the combined effect of the refraction, dispersion, and internal reflection

26/34

Which of the following light source cannot produce dispersion?

27/34

Light changes its direction when going from one transparent medium to another transparent medium. This is called ............ .

28/34

An illusion of the appearance of water on a hot road or in a desert is an example of

29/34

During refraction of light through the glass slab refraction of light takes place ........... in a glass slab.

30/34

Mirage is the effect of atmospheric .......... on a small scale.

31/34

If the first medium is vacuum then the refractive index of medium 2 is called .............. .

32/34

A light ray is entering glass from water,

33/34

We can see the sun even when it is little below the horizon because of ............ .

34/34
Refraction Of Light

Class 10 | Refraction Of Light

1 / 34

The unit of refractive index is

2 / 34

Which of the following cannot be used to study refraction?

3 / 34

…………. coloured ray deviates the most during the dispersion of light through a prism.

4 / 34

The refractive index of hot air is

5 / 34

For the refraction of light through a glass slab angle of incidence is ………….. angle of emergence.

6 / 34

Coin placed at the bottom of vessel when viewed from sides becomes visible only after filling water upto certain height. This is due to phenomenon of …….. .

7 / 34

Mirage is the effect of atmospheric ………. on a small scale.

8 / 34

Choose the correct statement regarding the incident ray, refracted ray and normal drawn at the point of incidence.

9 / 34

For a given pair of media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is………….. .

10 / 34

Which of the following remains unchanged during refraction of light?

11 / 34

Substances in the order of optically denser to optically rarer medium are:

12 / 34

What is the reason for the twinkling of stars?

13 / 34

When a ray of light enters a rarer medium from a denser medium, it gets partially reflected i.e. part of the light gets reflected and comes back into the denser medium obeying the laws of reflection. This is called ……………… reflection.

14 / 34

When a ray of light enters a rarer medium from a denser medium, for a particular value of i for which, the value of r becomes equal to 90°, is called the …………..angle.

15 / 34

…………. coloured ray deviates the least during the dispersion of light through a prism.

16 / 34

An illusion of the appearance of water on a hot road or in a desert is an example of

17 / 34

If the first medium is vacuum then the refractive index of medium 2 is called ………….. .

18 / 34

During formation of mirage, the density of air

19 / 34

Which of the following light source cannot produce dispersion?

20 / 34

The process of separation of light into its component colour while it is passing through a medium is called

21 / 34

How to convert light dispersed by prism again into white light?

22 / 34

The velocity of light is …………. in different media.

23 / 34

Light changes its direction when going from one transparent medium to another transparent medium. This is called ………… .

24 / 34

When a light ray makes an angle of 90° while entering a glass slab from air, it

25 / 34

The actual position of star is slightly ……….. than apparent position of star

26 / 34

A laser beam enters from air to soap solutions in water then ……………. .

27 / 34

A light ray is entering glass from water,

28 / 34

…………. is formed as the combined effect of the refraction, dispersion, and internal reflection

29 / 34

Refractive index depends on the

30 / 34

During refraction of light through the glass slab refraction of light takes place ……….. in a glass slab.

31 / 34

Dispersion of light and mirage are two examples of the phenomenon where ………… takes place.

32 / 34

A ray of light makes an angle of 50° with the surface S1 of the glass slab. Its angle of incidence will be…………… .

33 / 34

The speed of light in air is

34 / 34

We can see the sun even when it is little below the horizon because of ………… .

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