AIPMT PRELIMS2001Physics-Optics
AIPMT PRELIMS 2001 Physics Refraction MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A ray of light travelling in air has wavelength λ, frequency n, velocity v and intensity I. If this ray enters into water then these parameter are λ', n', v' and I' respectively. Which relation is correct
A
λ = λ'
B
n = n'
C
v = v'
D
I = I'
Correct Answer
Option B
Detailed Explanation
When light enters a different medium, its speed and wavelength change, but its frequency remains constant. Therefore, n = n'.
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