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

Showing 21 to 30 out of 34 Questions

21.

In viscous damping, the energy is dissipating in the form of __________ conducted by air or liquid in concern medium.

22.

F = \frac{μ A V}{y}

is used to calculate the

(a)	external force applied due to viscosity
(b)	external energy due to viscous damping
(c)	coefficient of damping
(d)	damping resistance due to viscous damping

23.

This type of damping occurs in all vibrating system due to elasticity of material.

24.

m \frac{d^{2} y}{{dt}^{2}} + c \frac{dy}{dt} + ky = 0

is the equation for

25.

ξ = \sqrt{\frac{{(\frac{c}{2 m})}^{2}}{\frac{k}{m}}}

is the equation of

(a)	free vibration factor
(b)	forced vibration factor
(c)	transverse vibration factor
(d)	damping factor

26.

If damping factor

ξ > 1

then vibrations are of

27.

ξ < 1

, then the condition of __________ is met.

28.

\frac{d^{2} y}{d t^{2}} + \frac{λ}{m} \frac{d y}{d t} + \frac{k}{m} y = \frac{F_{0}}{m} C o s (ω t)

equation represents

29.

The velocity amplitude is maximum when

30.

It is the science of sound which deals with the properties of sound waves and its effect on the construction of auditorium, buildings, halls, etc.

Showing 21 to 30 out of 34 Questions