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in Physics by (32.0k points)
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Sonu observes that the absolute refractive indices of two substance '1' and '2' are 2.0 and 1.5 respectively and the speed of light in medium 'B' is 2 x 10m/s.

Observe the above figure and read the information. Answer the below questions:

1. Calculate the speed of light in vacuum?

(i) 3 x 108 m/s

(ii) 2 x 108 m/s

(iii) 1 x 108 m/s

2. Calculate the speed of light in medium '1'?

(i) 3 x 108 m/s

(ii) 1.5 x 108 m/s

(iii) 1 x 108 m/s

3. The incident ray, the refracted ray and the normal to the interface of two media at the point of incidence all lie in the same plane. True/False

(i) TRUE

(ii) FALSE

4. The value of refractive index of a medium with respect to the vacuum is known as?

(i) Absolute refractive index

(ii) Snell's law

5. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant is known as?

(i) Absolute refractive index

(ii) Snell's law

1 Answer

+1 vote
by (32.2k points)
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Best answer

1. (i) 3 x 108 m/s

2. (ii) 1.5 x 108 m/s

3. (i) TRUE

4. (i) Absolute refractive index

5. (ii) Snell's law

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