Question

(iii)
Speed of light in rarer medium is --------that
of in denser.​

Answer 1

Answer:

less

Explanation:

According to Snell's Law:sin rsin i= n1n2=v2v1

Rarer medium will have refractive index n2 less than refractive index n1 of denser medium. Thus, according to the law speed will increase when travelling from denser to rarer medium i.e. v2 will be greater than v1.

Answer 2

Answer:

0.100000000000000000000000