The fundamental frequency of a sonometer wire is n. If the tension is made 3 times and length and diameter are also increased 3 times, the new frequency will be$

n/3‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ3

‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ3 n

A_string_is_tied_on_a_sonometer,_second_end_is_hanging_downward_through_a_pulley_with_tension_T._The_velocity_of_the_transverse_wave_produced_is_proportional_to$

1/‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇT

‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇT

22 + Mcqs in Progressive Waves in Engineering Physics Page 1 McqOptions

1.	The fundamental frequency of a sonometer wire is n. If the tension is made 3 times and length and diameter are also increased 3 times, the new frequency will be __________
A.	3n
B.	n/3√3
C.	n/3
D.	√3 n
Answer» C. n/3

Discussion

2.	A string is tied on a sonometer, second end is hanging downward through a pulley with tension T. The velocity of the transverse wave produced is proportional to __________
A.	1/√T
B.	√T
C.	T
D.	1/T
Answer» C. T

Discussion

3.	A particle on the trough of a wave at any instant will come to the mean position after a time (T=time period).
A.	T/2
B.	T/4
C.	T
D.	.a) T/2b) T/4c) Td) 2T
Answer» C. T

Discussion

4.	A wave equation is y=0.1sin[100πt-kx] and wave velocity is 100m/s, its number is equal to __________
A.	1/m
B.	2/m
C.	π/m
D.	2π/m
Answer» D. 2π/m

Discussion

5.	y1=4sin⁡(ωt+kx), y2=-4cos⁡(ωt+kx), the phase difference is __________
A.	π/2
B.	3π/2
C.	π
D.	Zero
Answer» C. π

Discussion

6.	If wave y=Acos(ωt+kx) Is moving along x-axis, the shapes of a pulse at t=0 and t=2s.
A.	Are different
B.	Are same
C.	May not be the same
D.	Unpredictable
Answer» C. May not be the same

Discussion

7.	The equation of a simple harmonic wave is given byy=5sin⁡(π/2) (100t-x)Where x and y are in metre and time is in second. The period of the wave in second will be __________
A.	0.04
B.	0.01
C.	1
D.	5
Answer» B. 0.01

Discussion

8.	The quantity which does not change, when sound enters from one medium to another __________
A.	Wavelength
B.	Speed
C.	Frequency
D.	Velocity
Answer» D. Velocity

Discussion

9.	The disc of a siren containing 60holes rotates at a constant speed of 360rpm. The emitted sound is in unison with a tuning fork of frequency.
A.	10Hz
B.	360Hz
C.	216Hz
D.	60Hz
Answer» C. 216Hz

Discussion

10.	It takes 2 seconds for a sound wave to travel between two fixed points when the day temperature is 10°C. If the temperature rises to 30°C, the sound wave travels between the same fixed parts in __________
A.	1.9s
B.	2s
C.	2.1s
D.	2.2s
Answer» B. 2s

Discussion

11.	The ratio of velocity of sound in hydrogen and oxygen at STP is __________
A.	16:1
B.	8:1
C.	4:1
D.	2:1
Answer» D. 2:1

Discussion

12.	A_PARTICLE_ON_THE_TROUGH_OF_A_WAVE_AT_ANY_INSTANT_WILL_COME_TO_THE_MEAN_POSITION_AFTER_A_TIME_(T=TIME_PERIOD)?$
A.	T/2
B.	T/4
C.	T
D.	2T
Answer» C. T

Discussion

13.	The fundamental frequency of a sonometer wire is n. If the tension is made 3 times and length and diameter are also increased 3 times, the new frequency will be$
A.	3n
B.	n/3‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ3
C.	n/3
D.	‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇ3 n
Answer» C. n/3

Discussion

14.	A_string_is_tied_on_a_sonometer,_second_end_is_hanging_downward_through_a_pulley_with_tension_T._The_velocity_of_the_transverse_wave_produced_is_proportional_to$
A.	1/‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇT
B.	‚Äö√Ñ√∂‚àö‚Ä†‚àö‚àÇT
C.	T
D.	1/T
Answer» C. T

Discussion

15.	A wave equation is y=0.1sin[100‚âà√¨‚àö√ët-kx] and wave velocity is 100m/s, its number is equal t?#
A.	1/m
B.	2/m
C.	‚âà√¨‚àö√ë/m
D.	2‚âà√¨‚àö√ë/m
Answer» D. 2‚âà√¨‚àö√ë/m

Discussion

16.	y₁=4sin‚Äö√Ñ√∂‚àö√ñ¬¨‚àû(‚âà√¨‚àö¬¢t+kx), y₂=-4cos‚Äö√Ñ√∂‚àö√ñ¬¨‚àû(‚âà√¨‚àö¬¢t+kx), the phase difference is$
A.	‚âà√¨‚àö√ë/2
B.	3‚âà√¨‚àö√ë/2
C.	‚âà√¨‚àö√ë
D.	Zero
Answer» C. ‚âà√¨‚àö√ë

Discussion

17.	If wave y=Acos(‚âà√¨‚àö¬¢t+kx) Is moving along x-axis, the shapes of a pulse at t=0 and t=2s$
A.	Are different
B.	Are same
C.	May not be the same
D.	Unpredictable
Answer» C. May not be the same

Discussion

18.	The equation of a simple harmonic wave is given by
A.	(100t-x)
B.
C.	0.04
Answer» B.

Discussion

19.	The quantity which does not change, when sound enters from one medium to another
A.	Wavelength
B.	Speed
C.	Frequency
D.	Velocity
Answer» D. Velocity

Discussion

20.	The disc of a siren containing 60holes rotates at a constant speed of 360rpm. The emitted sound is in unison with a tuning fork of frequency
A.	10Hz
B.	360Hz
C.	216Hz
D.	60Hz
Answer» C. 216Hz

Discussion

21.	It takes 2 seconds for a sound wave to travel between two fixed points when the day temperature is 10¬¨¬®‚Äö√†√ªC. If the temperature rises to 30¬¨¬®‚Äö√†√ªC, the sound wave travels between the same fixed parts in$
A.	1.9s
B.	2s
C.	2.1s
D.	2.2s
Answer» B. 2s

Discussion

22.	The ratio of velocity of sound in hydrogen and oxygen at STP is
A.	16:1
B.	8:1
C.	4:1
D.	2:1
Answer» D. 2:1

Discussion

Explore topic-wise MCQs in Engineering Physics.

The fundamental frequency of a sonometer wire is n. If the tension is made 3 times and length and diameter are also increased 3 times, the new frequency will be __________

A string is tied on a sonometer, second end is hanging downward through a pulley with tension T. The velocity of the transverse wave produced is proportional to __________

A particle on the trough of a wave at any instant will come to the mean position after a time (T=time period).

A wave equation is y=0.1sin[100πt-kx] and wave velocity is 100m/s, its number is equal to __________

y1=4sin⁡(ωt+kx), y2=-4cos⁡(ωt+kx), the phase difference is __________

If wave y=Acos(ωt+kx) Is moving along x-axis, the shapes of a pulse at t=0 and t=2s.

The equation of a simple harmonic wave is given byy=5sin⁡(π/2) (100t-x)Where x and y are in metre and time is in second. The period of the wave in second will be __________

The quantity which does not change, when sound enters from one medium to another __________

The disc of a siren containing 60holes rotates at a constant speed of 360rpm. The emitted sound is in unison with a tuning fork of frequency.

It takes 2 seconds for a sound wave to travel between two fixed points when the day temperature is 10°C. If the temperature rises to 30°C, the sound wave travels between the same fixed parts in __________

The ratio of velocity of sound in hydrogen and oxygen at STP is __________

A_PARTICLE_ON_THE_TROUGH_OF_A_WAVE_AT_ANY_INSTANT_WILL_COME_TO_THE_MEAN_POSITION_AFTER_A_TIME_(T=TIME_PERIOD)?$

The fundamental frequency of a sonometer wire is n. If the tension is made 3 times and length and diameter are also increased 3 times, the new frequency will be$

A_string_is_tied_on_a_sonometer,_second_end_is_hanging_downward_through_a_pulley_with_tension_T._The_velocity_of_the_transverse_wave_produced_is_proportional_to$

A wave equation is y=0.1sin[100‚âà√¨‚àö√ët-kx] and wave velocity is 100m/s, its number is equal t?#

y1=4sin‚Äö√Ñ√∂‚àö√ñ¬¨‚àû(‚âà√¨‚àö¬¢t+kx), y2=-4cos‚Äö√Ñ√∂‚àö√ñ¬¨‚àû(‚âà√¨‚àö¬¢t+kx), the phase difference is$

If wave y=Acos(‚âà√¨‚àö¬¢t+kx) Is moving along x-axis, the shapes of a pulse at t=0 and t=2s$

The equation of a simple harmonic wave is given by

The quantity which does not change, when sound enters from one medium to another

The disc of a siren containing 60holes rotates at a constant speed of 360rpm. The emitted sound is in unison with a tuning fork of frequency

It takes 2 seconds for a sound wave to travel between two fixed points when the day temperature is 10¬¨¬®‚Äö√†√ªC. If the temperature rises to 30¬¨¬®‚Äö√†√ªC, the sound wave travels between the same fixed parts in$

The ratio of velocity of sound in hydrogen and oxygen at STP is

y₁=4sin‚Äö√Ñ√∂‚àö√ñ¬¨‚àû(‚âà√¨‚àö¬¢t+kx), y₂=-4cos‚Äö√Ñ√∂‚àö√ñ¬¨‚àû(‚âà√¨‚àö¬¢t+kx), the phase difference is$