Question

find Refractive index if angle of incidence is 10° and ange of refraction is 20°.please give the correct answer and asap.​

Answer 1

Answer:

refractive index=sin10/sin20

Answer 2

Answer:

refractive index = 1/2

Explanation:

Given : i = 10°

r = 20°

refractive index = sin i / sin r

refractive index = sin10° / sin 20°

refractive index = sin10° / sin(10°+10°)

refractive index = sin10° / 2sin10°cos10°

refractive index = 1/2cos10°

refractive index = sec10°/2

refractive index = 1/2

Therefore , refractive index = 1/2