If the speed of the light in vacuum is 3x 10/8 find the absolute refractive index of the medium in which the light travels with a speed of 1.2; 10/8m/s

refractive index = 2.5

Explanation:

Refractive index given by the ratio of speed of light in air or vaccum to the speed of light in the medium

ñ = C/V

where C = speed of light in vacuum

v = Speed of light in medium

(3.0 × 10^8)/( 1.2 ×10^8)

= 2.5 ✓

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

conduct current i mean it makes sense