(A) From 20 Hz to 20 KHz
(B) Below from 20 Hz
(C) above from 20 KHz
(D) none of these
Category: Physics Mcqs
Physics Mcqs for NTS, PPSC, FPSC, CSS, PMS, Educators, SPSC, Lecturer, BPSC, AJKPSC, PTS, PST, EST, SST and all other exams. Users will find mcqs related to mechanics, Thermodynamics, Photonics, study of heat, Distance, work, force, time, machines, study of electricity, magnetism, law of motion, nuclear physics, Quantum, relativity, solar system, and all the topics will be covered in the physics mcqs section.
Which of them is used for undersea communication?
(A) Radio wave
(B) X-rays
(C) gamma ray
(D) ultrasonic waves
In stretched string, the speed of wave is independent of:
(A) Tension
(B) Length
(C) thickness of given string
(D) the point from where the string is plucked
A source is moving towards observer with velocity 100 m/s. The frequency of sound emitted by source is 500 Hz. The Doppler shift is:
(A) 0.5 m
(B) 0.2 m
(C) 5 m
(D) none of these
Transverse mechanical waves can be propagated:
(A) Both is gas and metal
(B) In gas but not in metal
(C) in metal but not in gas
(D) neither in gas not in metal
In standing wave if 𝝀 = 𝒍/𝟐 , in this case the number of loops are:
(A) One
(B) Two
(C) three
(D) four
Which of them is the result of collective motion of the particles of medium?
(A) Mechanical wave
(B) Electromagnetic waves
(C) matter waves
(D) none of these
When two coherent waves interfere there is:
(A) Loss of energy
(B) Gain in energy
(C) redistribution of energy
(D) none of these