The repeated back and forth motion about a mean position is called:
a
Linear motion
b
Circular motion
c
Oscillatory motion
d
Random motion
2
One complete round trip of a vibrating body is called:
a
Time period
b
Frequency
c
Cycle
d
Displacement
3
The time required to complete one cycle is called:
a
Frequency
b
Time period
c
Amplitude
d
Displacement
4
The unit of time period is:
a
Hertz
b
Meter
c
Second
d
Newton
5
The number of cycles completed per second is called:
a
Time period
b
Frequency
c
Amplitude
d
Velocity
6
The unit of frequency is:
a
Second
b
Meter
c
Hertz
d
Joule
7
Maximum displacement from mean position is called:
a
Frequency
b
Time period
c
Amplitude
d
Cycle
8
If time period increases, frequency:
a
Increases
b
Decreases
c
Remains same
d
Becomes zero
9
The SI unit of displacement is:
a
Meter
b
Second
c
Hertz
d
Newton
10
The relation between time period and frequency is:
a
T = f
b
T = 2f
c
T = 1/f
d
f = T²
11
The unit of time period is:
a
Hz
b
s
c
N
d
kg
12
Which of the following does not affect the period of the mass-spring system?
a
mass
b
spring constant
c
amplitude of vibration
d
All of the above affect the period
13
A transverse wave on a string has an amplitude A. A tiny spot on the string is colored red. As one cycle of the wave passes by, what is the total distance traveled by the red spot?
a
A
b
2A
c
d
4A
14
The bending of waves around the edges of the obstacle is:
a
reflection
b
refraction
c
diffraction
d
damping
15
A wave transports:
a
energy but not matter
b
matter but not energy
c
both energy and matter
d
air
16
A certain pendulum has an iron bob. When the iron bob is replaced with lead bob of the same size, its time period will:
a
stay the same
b
decrease
c
increase
d
be zero
17
A car mounted on shock absorbers is like a mass on a spring. If we ignore damping, how will the frequency of the oscillations change if passengers (or a heavy load) are added to the car? The frequency will:
a
increase
b
decrease
c
stay the same
d
be zero
18
An object of mass ’m’ oscillates on the end of a spring. To double the period, replace the object with one of mass:
a
2m
b
m/2
c
4m
d
m/4
19
If the pendulum completes exactly 12 cycles in 2.0 min, what is the frequency of the pendulum?