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

During the preparation of the MDCAT, the students must pay attention to all topics included in the syllabus. The respective authorities have provided the MDCAT syllabus so the candidates can learn about the topics included in the test and prepare them in a better way. The MDCAT consists of MCQs, and for the convenience of the students, the MCQs are uploaded on this platform.

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

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MDCAT Physics Chapter 6 Waves Online Test

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

A longitudinal sinusoidal wave has wavelength of 1cm and a period of 2sec. Its wavevelocity is:

Question # 5

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

Question # 6

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

Question # 7

The frequency of the fundamental mode of open at one organ pipe is 400 Hz. Ifone end of pipe is closed the fundamental frequency will be

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

A 4 m long string fixed at its ends resonate in 4 segments. The wavelength of the waveis:

Question # 14

In which of the following, Doppler’s effect is not applicable?

Question # 15

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, :

Question # 16

A string vibrates in 1 loop has frequency 25 Hz if it moves in 2 loops its frequencywould be:

Question # 17

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

Question # 18

A progressive sound wave is a means of transferring energy. A progressive sound waveof constant frequency is generated in air. The intensity of energy transfer is directlyproportional to another of the wave parameters. Which of the following is correct?

Question # 19

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

Question # 20

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

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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 sonometer wire 100 cm in length has a fundamental frequency of 330 Hz. Thevelocity of propagation of waves along the wire is
A. 115m/sec
B. 115m/sec
C. 660m/sec
D. 990m/sec
3 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:
A. Decreasing
B. Increasing
C. Both
D. Constant
4
When passes from medium to another, deviate from its path is called
A. reflection
B.
refraction
C. diffraction
D. transmission
5 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
6 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:
A. 400 Hz and 4 kHz
B. 100 Hz and 100 kHz
C. 50 Hz and 50kHz
D. 400 Hz and 400 kHz
7 A closed organ pipe and an open organ pipe have their first overtone identical infrequency. Their lengths are in ratio
A. 3:4
B. 1:2
C. 2:3
D. 3:5
8 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
9 If a transverse wave has a speed of 10 m/ sec and frequency of 10 cycle/ sec itswavelength is:
A. 1 m
B. 10-2 cm
C. 10 m
D. 10 cm
10 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
11
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
12 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, :
A. 2,200
B. 4,800
C. 4,400
D. 2,920
13 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
14 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
15 Where in standing wave, do the vibrations of the medium occur?
A. Only at the nodes
B. Only at the antinodes
C. At all points between the nodes
D. At all points between the antinodes
16 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:
A. 20%
B. 40%
C. 5%
D. 10%
17 A wave which consists of a single, non-repetitive disturbance is called a
A. Continuous wave
B. Longitudinal wave
C. Pulse
D. Transverse wave

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