The figure shows plane waves refracted from a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) According to Huygens's principle,the time taken by the wavefront to travel the distance $b$ in air is equal to the time taken to travel the distan

Vedclass · Accepted Answer

$b/d$

Vedclass · Answer

(C) According to Huygens's principle,the time taken by the wavefront to travel the distance $b$ in air is equal to the time taken to travel the distance $d$ in water.Let $v_a$ be the speed of light in air and $v_w$ be the speed of light in water.Then,the time $t = \frac{b}{v_a} = \frac{d}{v_w}$.Rearranging the terms,we get $\frac{v_a}{v_w} = \frac{b}{d}$.By definition,the refractive index of water with respect to air is $\mu = \frac{v_a}{v_w}$.Therefore,$\mu = \frac{b}{d}$.

The figure shows plane waves refracted from air to water using Huygens's principle. $a, b, c, d, e$ are lengths on the diagram. The refractive index of water with respect to air is the ratio:

Similar Questions

When light propagates through a given homogeneous medium,the velocities of

The main drawback of Huygens' theory was:

When wavefronts pass from a denser medium to a rarer medium, the width of the wavefront

Huygens' principle is applicable to

Rays diverging from a point source form a wave front that is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module