(A) pitch
(B) wavelength
(C) frequency
(D) velocity
Answer: (B) wavelength
The distance between two consecutive crests or troughs is called wavelength.
Category: FPSC Physics Lecturer Test Past Papers
FPSC Physics Lecturer (BS-17) Test Past Papers Solved MCQs Questions with Answers.
Replacement a bright fringe by the next bright fringe in Michelson’s Interferometer the moveable mirror is moved through a distance equal to:
(A) λ / 4
(B) λ / 2
(C) 2λ
(D) λ
Answer: (A) λ / 4