ECAT Engineering Exams Quizzes MCQs Quizzes ECAT Engineering Entry Test 2017 Physics Physical Optics 3

Question:
The relation between displacement of the mirror ‘L’ and wavelength λ of the light used

Option A):
None of these
Option B):
L = mλ/2
Option C):
L = 2mλ
Option D):
L = λ/2m

Correct Answer is Option B):
L = mλ/2