Question
Physics Question on Ray optics and optical instruments
A ray of light travelling in air haves 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′
Answer
n = n'
Explanation
Solution
The correct option is(B): n = n'. n = n' ,which means the frequency of the ray of light remains the same as it enters into water. This phenomenon is described by Snell's Law and is a fundamental principle in optics. So, the correct relation is n=n ′,indicating that the frequency of the light ray remains constant as it enters water, in accordance with the fundamental principles of optics and Snell's Law.