Question

Answer the following questions using the given ray diagram. a) Identify and label the points A to E and the line L shown in the ray diagram below. b) Complete theray diagram and mark the position of the image. answer these questions properly​

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12th

Physics

Ray Optics and Optical Instruments

Prism

(a) Draw and label the diag...

Physics

(a) Draw and label the diagram given :

(i) Incident ray

(ii) Refracted ray

(iii) Emergent ray

(iv) Angle of reflection

(v) Angle of deviation

(v) Angle of emergence

(b) The refractive index of diamond is 2.42. What is the meaning of this statement in relation to speed of light?

604621

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Solution To Question ID 604621

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(a) The labelled diagram is shown.

(b) The refractive index of diamond is 2.42. Refractive index of diamond is the ratio of the speed of light in air to the speed of light in diamond.i.e.,

μ=

Speedoflightindiamond

Speedoflightinair

and, the ratio of these velocities is 2.42. i.e., This means that the speed of light in diamond will reduce by a factor of 2.42 as compared to its speed in air. In other words, the speed of light in diamond is

2.42

1

times the speed of light in vacuum.

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