Physics, asked by PRATHAMABD, 1 year ago

IF Refractive INDEX IS GIVEN AND SIN I =30° THEN HAD TO FIND SIN R SO I GOT THE ANSWER IN DECIMAL HOW DO I CHANGE IT INTO ANGLE????

NICE ANS WILL BE MARKED AS BRAINLIST

Answers

Answered by RitulKumawat

let refractive index will be x

sin 30° = 1/2

So x = sin i/ sin r

x = (1/2)/sin r

r is the angle

so r = sin^-1(1/2x)

Round your answer to get decimal angles

Note : Make sure the answer is in degree not in radian

RitulKumawat: sin i = 0.5

RitulKumawat: so 1.5 = 1/2sin r ------ sin r = 1/3 . But for solving for r we will get 19°

RitulKumawat: sin r = 1/3 but r = 19.47°

RitulKumawat: angle of reflection = 19°

RitulKumawat: u need to find r instead of sin r

PRATHAMABD: 1/3 i also got

PRATHAMABD: how to convert 1/3 in degree

RitulKumawat: sin r = 1/3. But for angle of reflection the answer is 19°

RitulKumawat: In short sin r = 1/3 and r = 19°

RitulKumawat: And r is required answer

Previous Question

Next Question