MDCAT Physics Chapter 6 online mcq test with answers for chapter 6 (Electrostatics)

Question # 1

A sonometer wire 100 cm in length has a fundamental frequency of 330 Hz. Thevelocity of propagation of waves along the wire is

115m/sec A
115m/sec B
660m/sec C
990m/sec D

Question # 2

The maximum wavelength of a transverse wave that can be set up in a string of length Lis

L A
2L B
V C
4L D

Question # 3

When passes from medium to another, deviate from its path is called

reflection A
refraction
B
diffraction C
transmission D

Question # 4

A closed organ pipe and an open organ pipe have their first overtones of identicalfrequency. Their respective lengths are in the ratio:

1 : 2 A
4 : 3 B
2 : 3 C
3 : 5 D

Question # 5

It is a common characteristic of all types of wave motion that

Particles move up and down A
Particles move back and forth B
Energy is transferred without the transport of particles C
A material medium transmits the disturbance D

Question # 6

A whistle is revolved with high speed in a horizontal circle of radius R. to an observer at the centre of the circle the frequency of the whistle will appear to be:

Decreasing A
Increasing B
Both C
Constant D

Question # 7

The fundamental frequency of a closed organ pope is 50 Hz. The frequency ofsecond over tone is

100hz A
150hz B
60hz C
250hz D

Question # 8

When an observer moves towards a stationary source with a speed equal to 1/5 timesof speed of sound, the percentage increase in the frequency of sound is:

20% A
40% B
5% C
10% D

Question # 9

Where in standing wave, do the vibrations of the medium occur?

Only at the nodes A
Only at the antinodes B
At all points between the nodes C
At all points between the antinodes D

Question # 10

If a transverse wave has a speed of 10 m/ sec and frequency of 10 cycle/ sec itswavelength is:

1 m A
10^-2 cm B
10 m C
10 cm D

Question # 11

The spectrum of a star’s light is measured and the wavelength of one of the lines as thesodium’s line is found to be 589 nm. The same line has the wavelength of 497 nm whenobserved in the laboratory. This means the star is

Moving away from the earth A
Moving towards the earth B
Stationary C
Revolving around the planet D

Question # 12

If source and observer are moving towards each other with same speed and aftercrossing they are receding each other then frequency observed by observer:

Decreases A
Remains constant B
Increases C
First Increases then decreases D

Question # 13

The fundamental frequency in a stretched string is 10 Hz. To double the frequency, the tension in it must be changed to:

T₂ = 2T₁ A
T₂ = 4T₁ B
T₂ = T₁ C
none of these D

Question # 14

A listener observes the frequency “f” of stationary source. If it move toward with 3 times of velocity of sound. Then the apparent frequency of the sound will be

f A
3f B
f/2 C
4f D

Question # 15

When temperature increases, frequency of organ pipe:

Decreases A
Remains the same B
Increases C
Becomes zero D

Question # 16

Wavelength of the wave is the distance between the particles of the medium having adifference of:

Zero A
n B
2n C
𝜋2 D

Question # 17

A wave which consists of a single, non-repetitive disturbance is called a

Continuous wave A
Longitudinal wave B
Pulse C
Transverse wave D

Question # 18

The frequency of an open pipe is f. if one end is closed then its fundamental frequencywill be:

f/2 A
3f/4 B
f C
2f D

Question # 19

In closed end organ pipe, the frequency of first harmonic is 300 Hz. The frequency ofthird overtone is :

900 Hz A
1500 Hz B
2100 Hz C
600 Hz D

Question # 20

A closed organ pipe and an open organ pipe have their first overtone identical infrequency. Their lengths are in ratio

3:4 A
1:2 B
2:3 C
3:5 D

Sr.#	Question	Answer
1	A closed organ pipe and an open organ pipe have their first overtones of identicalfrequency. Their respective lengths are in the ratio:	A. 1 : 2 B. 4 : 3 C. 2 : 3 D. 3 : 5
2	A wave which consists of a single, non-repetitive disturbance is called a	A. Continuous wave B. Longitudinal wave C. Pulse D. Transverse wave
3	The fundamental frequency of a closed organ pope is 50 Hz. The frequency ofsecond over tone is	A. 100hz B. 150hz C. 60hz D. 250hz
4	The spectrum of a star’s light is measured and the wavelength of one of the lines as thesodium’s line is found to be 589 nm. The same line has the wavelength of 497 nm whenobserved in the laboratory. This means the star is	A. Moving away from the earth B. Moving towards the earth C. Stationary D. Revolving around the planet
5	A listener observes the frequency “f” of stationary source. If it move toward with 3 times of velocity of sound. Then the apparent frequency of the sound will be	A. f B. 3f C. f/2 D. 4f
6	If source and observer are moving towards each other with same speed and aftercrossing they are receding each other then frequency observed by observer:	A. Decreases B. Remains constant C. Increases D. First Increases then decreases
7	The maximum wavelength of a transverse wave that can be set up in a string of length Lis	A. L B. 2L C. V D. 4L
8	It is a common characteristic of all types of wave motion that	A. Particles move up and down B. Particles move back and forth C. Energy is transferred without the transport of particles D. A material medium transmits the disturbance
9	A particular wavelength received from a galaxy is measured on earth and isfound to be 5% more than that its wave length on earth. Hence galaxy is	A. Moving towards earth B. Going away from earth C. Stationary with respect to earth D. None
10	In closed end organ pipe, the frequency of first harmonic is 300 Hz. The frequency ofthird overtone is :	A. 900 Hz B. 1500 Hz C. 2100 Hz D. 600 Hz

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MDCAT Physics Chapter 6 MCQ Test With Answer for (Waves )

MCQ's Test For MDCAT Physics Chapter 6 Waves Online Test

MDCAT Physics Chapter 6 Waves Online Test

A sonometer wire 100 cm in length has a fundamental frequency of 330 Hz. Thevelocity of propagation of waves along the wire is

The maximum wavelength of a transverse wave that can be set up in a string of length Lis

When passes from medium to another, deviate from its path is called

A closed organ pipe and an open organ pipe have their first overtones of identicalfrequency. Their respective lengths are in the ratio:

It is a common characteristic of all types of wave motion that

A whistle is revolved with high speed in a horizontal circle of radius R. to an observer at the centre of the circle the frequency of the whistle will appear to be:

The fundamental frequency of a closed organ pope is 50 Hz. The frequency ofsecond over tone is

When an observer moves towards a stationary source with a speed equal to 1/5 timesof speed of sound, the percentage increase in the frequency of sound is:

Where in standing wave, do the vibrations of the medium occur?

If a transverse wave has a speed of 10 m/ sec and frequency of 10 cycle/ sec itswavelength is:

The spectrum of a star’s light is measured and the wavelength of one of the lines as thesodium’s line is found to be 589 nm. The same line has the wavelength of 497 nm whenobserved in the laboratory. This means the star is

If source and observer are moving towards each other with same speed and aftercrossing they are receding each other then frequency observed by observer:

The fundamental frequency in a stretched string is 10 Hz. To double the frequency, the tension in it must be changed to:

A listener observes the frequency “f” of stationary source. If it move toward with 3 times of velocity of sound. Then the apparent frequency of the sound will be

When temperature increases, frequency of organ pipe:

Wavelength of the wave is the distance between the particles of the medium having adifference of:

A wave which consists of a single, non-repetitive disturbance is called a

The frequency of an open pipe is f. if one end is closed then its fundamental frequencywill be:

In closed end organ pipe, the frequency of first harmonic is 300 Hz. The frequency ofthird overtone is :

A closed organ pipe and an open organ pipe have their first overtone identical infrequency. Their lengths are in ratio

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