Objective Type Questions
A. Multiple choice questions.
1. Maximum distance a pendulum travels on either side from 'o' point is
(a) Amplitude (b) Time period (c) Frequency (d) Vibration
2. Time taken by a pendulum for completing one oscillation is
(a) Amplitude (b) Time period (c) Frequency (d) Vibration
3. Number of oscillations per second is the
(a) Amplitude (b) Time period (c) Frequency (d) Wavelength
4. Speed of sound in air is
(a) 332 m/s (b) 1500 m/s (c) 400 m/s (d) 5000 m/s
5. Which of the following level
of sound is noise
(a) 20 dB
(b) 40 dB
(c) 80 dB (d) 100 dB
188
Answers
Answered by
4
Answer:
1a
2b
3c
4a
5d
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Answered by
1
Answer:
1. is part (a)
2. is part (b)
3. is part (c)
4. is part (a), it is always around 343 m/s according to experts.
5. is part (c), noise is created above 70 dB and level of sound after 120 dB may cause harm to your ears.
Explanation:
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