TS EAMCET Medical 29 Sept 2020 Shift 2 Paper

Question : 82 of 160

Marks: +1, -0

At normal incidence, a beam of light propagating in vacuum reflects of an interface with a medium of refractive index n= 3. The fraction of energy reflected R is given as R = (

n−1

n+1

)2. If the fractional error in the value of n is 1%, the fractional error in the estimation of R is

1.5%
2.0%
2.5%
0.5%

Validate

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