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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-6 section-2

Each section contains 100 MCQs on Sounds waves and Motion .
51
Which of the following sound wave will have the longest wavelength?
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Answer & Solution
Answer: Option A
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52
Which of the following statements about the speed of sound in different mediums is true/false at 25°C?
A. In seawater, the speed of sound is 1531 m/s.
B. In water (distilled), the speed of sound is 1498 m/s.
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Answer & Solution
Answer: Option C
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53
An object travelling at a speed greater than the speed of sound in air is called . . . . . . . .
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Answer & Solution
Answer: Option A
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54
The amplitude of the wave is-
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Answer: Option B
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55
Which of the following is the time taken for a complete oscillation of a sound wave in the density of the medium?
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Answer & Solution
Answer: Option A
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56
. . . . . . . . determines the speed of sound in a medium.
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Answer: Option C
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57
Which of the following is not electromagnetic wave?
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Answer: Option D
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58
Sound above what level (in decibel) is considered hazardous noise pollution?
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Answer: Option C
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59
Match List I (Electromagnetic Wave) with List II (Discoverer) and select the correct answer:
List-I List-II
a. Infrared waves 1. Ritter
b. Ultraviolet rays 2. Newton
c. X-rays 3. Herchel
d. Visible rays 4. W Roentgen
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Answer: Option B
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60
A human being cannot tolerate very loud sound. What is the level of loudness which a human being can tolerate?
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Answer & Solution
Answer: Option A
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