Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Multiple Choice Questions (MCQs)>Q 21

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The refractive index of glass with respect to air is $\frac{3}{2}$ . The refractive index of air with respect to glass will be:

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Important Questions on Refraction of Light

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Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Multiple Choice Questions (MCQs)>Q 22

The refractive indices of four media

A, B, C

and

D

are

1.44, 1.52, 1.65

and

1.36

respectively. When light travelling in air is incident in these media at equal angle, the angle of refraction will be the minimum:

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Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Multiple Choice Questions (MCQs)>Q 23

The speed of light in substance

X

is

1.25 \times 10^{8} m / s

and that in air is

3 \times 10^{8} m / s

. The refractive index of this substance will be:

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Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Multiple Choice Questions (MCQs)>Q 24

The refractive indexes of four substances

P, Q, R

and

S

are

1.77, 1.50, 2.42

and

1.31

respectively. When light travelling in air is incident on these substances at equal angles, the angle of refraction will be the maximum in:

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Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Multiple Choice Questions (MCQs)>Q 25

The refractive index of water is:

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Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Multiple Choice Questions (MCQs)>Q 26

The refractive index of water with respect to air is

\frac{4}{3}

. The refractive index of air with respect to water will be:

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Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Multiple Choice Questions (MCQs)>Q 27

Refractive indices of water, sulphuric acid, glass and carbon disulphide are

1.33, 1.43, 1.53

and

1.63

respectively. The light travels slowest in:

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Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Multiple Choice Questions (MCQs)>Q 28

The refractive index of glass with respect to air is

\frac{3}{2}

and the refractive index of water with respect to air is

\frac{4}{3}

. The refractive index of glass with respect to water will be:

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Science for Tenth Class Part - 1 Physics>Chapter 5 - Refraction of Light>Questions Based on High Order Thinking Skills (HOTS)>Q 29

The following table gives the refractive indices of a few media:

	$1$	$2$	$3$	$4$	$5$
Medium:	Water	Crown glass	Rock salt	Ruby	Diamond
Refractive index:	$1.33$	$1.52$	$1.54$	$1.71$	$2.42$

Use this table to give an example of a medium pair so that light speeds up when it goes from one of these medium to another.