ECAT Pre Computer Science Chapter 8 online mcq test with answers for Physics chapter 8 (Waves)

ECAT Physics Chapter 8 Waves Online Test

Sr. #	Questions	Answers Choice
1	At 'resonance' the transfer of energy from deriving source to the oscillator is	maximum minimum zero none of them
2	In a resonance situation the amplitude of the motion may become extra ordinarily large, if	the driving force is large the driving force is zero the driving force may be feeble all of them
3	If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get	diffraction beat interference resonance
4	Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as	waves beat interference resonance
5	The vibrations of factory floor caused by the running of heavy machinery is an example of	free vibration natural vibrations forced vibrations all of them
6	A physical system under going forced vibrations is known as	Simple harmonic oscillator Compound harmonic oscillator Physical harmonic oscillator driven harmonic oscillator
7	If a freely oscillating system is subjected to an external force, then	free vibrations will take place the body will move with its natural frequency forced vibrations will take place none of them
8	The natural frequency of a pendulum which is vibrating freely, depends upon its	mass length material all of them
9	The frequency of free vibrations is known as	free frequency forced frequency natural frequency un-natural frequency
10	A body is executing free vibrations when it oscilates	with the interference of an external force without the interference of an external force with the interference of an internal force none of them
11	If a simple pendulum is shifted from karachi to K-2 cliff, its time period	remains the same decreases increases none of them
12	The time period of pendulums of different lengths would be	same different both of them none of them
13	A second's pendulum is a pendulum whose time period is	1 second 2 seconds 3 seconds 4 seconds
14	If the mass of the simple pendulum becomes double, its time period	increase decreases remains constant none of them
15	If we increase the length of a simple pendulum four times, its time period will become	2 times 3 times 4 times 6 times

Download This Set