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

Question # 1

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 # 2

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 # 3

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 # 4

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 # 5

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 # 6

If the tension in a string stretched between two fixed points is made four times, the frequency of the fundamental harmonic will become:

Two times A
Three times B
Four times C
Six times D

Question # 7

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 # 8

A sonar depth finder in a boat uses sound signals to determine the depth of water. Fourseconds after the sound leaves the boat it returns to the boat because of reflection fromthe bottom. Assume the speed of sound in water is 1,460 meters per second. The depth of the water is, in meters, :

2,200 A
4,800 B
4,400 C
2,920 D

Question # 9

With the propagation of longitudinal waves through a material medium, the quantitiestransferred in the direction of propagation are:

Energy, momentum and mass A
Energy and momentum B
Energy and mass C
Energy D

Question # 10

A church organ consist of open ended pipes ranging from 4m to 4 mm, if the speed ofsound is considered as 400 m/s then the min and max frequency is:

400 Hz and 4 kHz A
100 Hz and 100 kHz B
50 Hz and 50kHz C
400 Hz and 400 kHz D

Question # 11

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 # 12

In a closed organ pipe, the fundamental frequency is f. What will be the ratio of thefrequencies of the next three overtones?

2 : 3 : 4 A
3 : 7 : 11 B
3 : 4 : 5 C
3 : 5 : 7 D

Question # 13

Which one is the case when the wavelength is actually changed?

When source move relative to observer A
When observer move relative to source B
When observer moves around a stationary source at the center of circle C
When the relative displacement between source and observer is zero D

Question # 14

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 # 15

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 # 16

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

reflection A
refraction
B
diffraction C
transmission D

Question # 17

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 # 18

When temperature increases, frequency of organ pipe:

Decreases A
Remains the same B
Increases C
Becomes zero D

Question # 19

An organ pipe open at both ends and another organ pipe, closed at one end willresonate with each other, if their lengths are in ration of

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

Question # 20

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

Sr.#	Question	Answer
1	The frequency of an open pipe is f. if one end is closed then its fundamental frequencywill be:	A. f/2 B. 3f/4 C. f D. 2f
2	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
3	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
4	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
5	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
6	The fundamental frequency in a stretched string is 10 Hz. To double the frequency, the tension in it must be changed to:	A. T₂ = 2T₁ B. T₂ = 4T₁ C. T₂ = T₁ D. none of these
7	An organ pipe open at both ends and another organ pipe, closed at one end willresonate with each other, if their lengths are in ration of	A. 1:1 B. 1:4 C. 2:1 D. 1:2
8	Bats navigate and find food by:	A. Ultrasonic B. Echolocation C. Refraction
9	If the tension in a string stretched between two fixed points is made four times, the frequency of the fundamental harmonic will become:	A. Two times B. Three times C. Four times D. Six times
10	Which one is the case when the wavelength is actually changed?	A. When source move relative to observer B. When observer move relative to source C. When observer moves around a stationary source at the center of circle D. When the relative displacement between source and observer is zero

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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

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

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

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

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

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

If the tension in a string stretched between two fixed points is made four times, the frequency of the fundamental harmonic will become:

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 sonar depth finder in a boat uses sound signals to determine the depth of water. Fourseconds after the sound leaves the boat it returns to the boat because of reflection fromthe bottom. Assume the speed of sound in water is 1,460 meters per second. The depth of the water is, in meters, :

With the propagation of longitudinal waves through a material medium, the quantitiestransferred in the direction of propagation are:

A church organ consist of open ended pipes ranging from 4m to 4 mm, if the speed ofsound is considered as 400 m/s then the min and max frequency is:

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

In a closed organ pipe, the fundamental frequency is f. What will be the ratio of thefrequencies of the next three overtones?

Which one is the case when the wavelength is actually changed?

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

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

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

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:

When temperature increases, frequency of organ pipe:

An organ pipe open at both ends and another organ pipe, closed at one end willresonate with each other, if their lengths are in ration of

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

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