Light enters from air into water which has a refractive index of1.33.Calculate the speed of light in water.The speed of light in air is 3.0×10^8

Asked by sarahjaved711 | 10th Mar, 2021, 04:08: PM

Expert Answer:

when light is travelling obliquely from one medium to other medium, direction of propagation changes in second medium.
This phenomenan is refraction of light.
 
begin mathsize 12px style r e f r a c t i v e space i n d e x space space o f space m e d i u m equals space fraction numerator s p e e d space o f space l i g h t space i n space a i r over denominator s p e e d space o f space l i g h t space i n space m e d i u m end fraction end style
speed of light in water = ( 3×10)/ 1.33  = 2.25×10m/s

 

Answered by Shiwani Sawant | 12th Mar, 2021, 07:45: PM