Answer:
Explanation:
If angle of incidence and angle of refraction be i and r respectively ,
sini / sinr = μ ( refractive index )
sin r = sin i / μ
If angle of incidence i be constant and medium becomes denser that means μ becomes higher in value , the value of sin r will be low ( because of increase in value of denominator )
As sin r decreases , r also decreases also.
Hence when medium becomes denser , angle of refraction becomes less .
