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????
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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
so 1.5 = 1/2sin r ------ sin r = 1/3 . But for solving for r we will get 19°
sin r = 1/3 but r = 19.47°
angle of reflection = 19°
u need to find r instead of sin r
1/3 i also got
how to convert 1/3 in degree
sin r = 1/3. But for angle of reflection the answer is 19°
In short sin r = 1/3 and r = 19°
And r is required answer
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