(A) Longer
(B) Shorter
(C) Heavier
(D) Lighter
Answer: (A) Longer
A pendulum clock is running slow, it can be corrected by making this pendulum longer.
Category: FPSC Physics Lecturer Test Past Papers
FPSC Physics Lecturer (BS-17) Test Past Papers Solved MCQs Questions with Answers.
When the net torque acting on the system is zero, which of the following option will be constant?
(A) Force
(B) Angular Momentum
(C) Liner Momentum
(D) Rotator motion
Answer: (B) Angular Momentum
When the net torque acting on the system is zero, angular momentum will be constant.
Two sources of light are said to be coherent if:
(A) They produce waves of the same wave length
(B) They have the same amplitude of vibration
(C) They produce waves in the medium simultaneously
(D) They produce waves of the same amplitude
Answer: (A) They produce waves of the same wave length
If we narrow the distance between two slits in Young’s experiment the fringes width will be:
(A) Increases
(B) Decreases
(C)Remains same
(D) Becomes zero
Answer: (A) Increases
If we narrow the distance between two slits in Young’s experiment the fringes width will be increases.
The point to which the light rays are brought to focus is known as :
(A) Principle Focus
(B) Optical Axis
(C) Centre of curvature
(D) Centre of mass
Answer: (A) Principle Focus
The point to which the light rays are brought to focus is known as principle focus.