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Sounds waves and Motion MCQ question and answer with solution | Physics Gk MCQs

Learn Sounds waves and Motion MCQ Questions and answers with easy and logical explanations in Physics Gk . Sounds waves and Motion MCQ question provides all type of technical mcq questions which is important for SSC-CGL, UPPSC, NDA, CDS and all govt examinations Page-2 section-4

Each section contains 100 MCQs on Sounds waves and Motion .
11
The optimum sound level for human beings is
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Answer: Option B
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12
In which type of waves do vibrations move parallel to the direction of the wave's movement?
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Answer: Option C
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13
If the frequency of a wave is doubled then its wavelength will be-
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Answer: Option D
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14
What is the approximate minimum distance between source and reflector for echo?
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Answer: Option C
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15
Ultrasonic waves are produced by making use of
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Answer: Option C
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16
The walls of the ball, built for music concerts should
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Answer: Option D
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17
Consider the following statements about ultrasonic waves.
1. They can destroy insects.
2. They can clean clothes by removing dust.
3. They can be used to treat diseases.
4. They can control automatic doors.
Of the above statements.
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Answer: Option D
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18
The frequency which is not audible to the human ear is:
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Answer: Option B
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19
Which of the following is/are true regarding speed of sound in different mediums at 25°C?
A. In aluminium, the speed of sound is 6220m/s.
B. In nickel, the speed of sound is 6040 m/s.
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Answer: Option C
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20
The way the brain interprets the frequency of an emitted sound is called the . . . . . . . .
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Answer: Option C
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