Question

Physics Question ???????

Answer 1

hey mate here is ur ans
speed of the wave = frequency * wavelength
= 4*10 power 14*5*10power -7=2*10 power8

refractive index =speed of light in vacuum /speed of light in a medium
=3*10 power8/2*10power 8=3/2=1.5

thus ur ans is option a
hope it helps you frnd
Plzz mark brainliest if desired

Answer 2

Answer:

option a is correct

Explanation:

speed of the wave = frequency × wavelength

substitute the values

= 4*10 power 14*5*10power -7=2*10 power8

refractive index =speed of light in vacuum /speed of light in a medium

=3*10 power8/2*10power 8=3/2=1.5