Question

What happens when a ray of light strikes the surface of separation between the two media at right angle?

Answer 1

• When a light enters from one medium to another, it passes without any deviation

• According to the snells law

 • Refractive index= sin i/sin r

• Since angle of incidence =0, sin i=0

• Therefore Sin r=Sin i/refractive index

• Since sin r=0

• Hence angle of reflection =0

• Therefore the light ray passes without deviation

Answer 2

Study

ProfileGET APP

 Type your question



Shaurya Chaudhary asked in Science

What happens when a ray of light strikes the surface of separation between the two media at right angle?

Share 

 2

 Follow2



Somnath Mazumder answered this
9894 helpful votes in Science, Class XII-Science


When light enters the boundary of two surfaces at right it passes normally without deviation.
This is because here angle of incidence at the boundary of two mediums is zero.
By Snell’s law 
sinisinr=μ∵i=0=>sini=0sinr=siniμ=>sinr=0=>r=0We see angle of refraction also becomes 0.Thus light ray doesn't deviate from the normal at the boundary.