MCQs of Waves, Motion and Acoustics (Physics Group - I - 3110011)

Physics Group - I (3110011) MCQs

MCQs of Waves, Motion and Acoustics

Showing 11 to 20 out of 34 Questions

11.

\frac{d^{2} y}{d t^{2}} + ω^{2} y = 0

is the equation of

(a)	solution of differential equation of SHM
(b)	standing wave equation
(c)	all of these
(d)	differential equation of SHM

12.

Maximum velocity of SHM is given by

v_{m a x} =

(a)	$X ω$
(b)	$A ω S i n (ω t)$
(c)	$A ω C o s (ω t)$
(d)	$A S i n (ω t)$

13.

Time period of SHM is given by

(a)	$T = \frac{2 π}{ω^{2}}$
(b)	$T = 2 π \sqrt{\frac{k}{m}}$
(c)	$T = 2 π \sqrt{\frac{m}{k}}$
(d)	$T = \frac{2 π}{m}$

14.

Time period for pendulum showing SHM is

(a)	$T = 2 π \sqrt{\frac{g}{l}}$
(b)	$T = 2 π \sqrt{\frac{1}{g l}}$
(c)	$T = 2 π \sqrt{\frac{l}{g}}$
(d)	$T = 2 π \frac{l}{g}$

15.

If a system vibrates on its own, without any external force, once an initial disturbance is given, such vibration is called

(a)	free vibrations
(b)	forced vibrations
(c)	damped vibrations
(d)	surface vibrations

16.

Free vibrations decline when a __________ force is present.

(a)	frictional
(b)	non-conservative
(c)	air resistance
(d)	all of these

17.

If a system vibrates under the effect of __________ force, then such vibration is called forced vibration

(a)	external
(b)	internal
(c)	tangential
(d)	longitudinal

18.

Shaking motion experienced by a person seating in transporting vehicle is an example of __________ vibration

(a)	forced
(b)	free
(c)	standing
(d)	molecular

19.

If no energy is lost or dissipated in friction (or in any other form of resistance) during vibrations, then such vibrations are called as __________ vibrations

(a)	un-damped
(b)	damped
(c)	forced
(d)	general

20.

Types of damping

(a)	viscous
(b)	coulomb
(c)	all of these
(d)	hysteresis

Showing 11 to 20 out of 34 Questions