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Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - UPSC MCQ


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10 Questions MCQ Test Science & Technology for UPSC CSE - Test: Sound, Doppler Effect, Amplitude Time Period & Frequency

Test: Sound, Doppler Effect, Amplitude Time Period & Frequency for UPSC 2024 is part of Science & Technology for UPSC CSE preparation. The Test: Sound, Doppler Effect, Amplitude Time Period & Frequency questions and answers have been prepared according to the UPSC exam syllabus.The Test: Sound, Doppler Effect, Amplitude Time Period & Frequency MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency below.
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Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 1

What type of wave is produced when a stone is thrown into water, creating ripples on the surface?

Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 1
The type of wave produced when a stone is thrown into water and creates ripples on the surface is a transverse wave. In a transverse wave, the particles of the medium oscillate about their mean positions in a direction perpendicular to the direction in which the wave is traveling.
Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 2

What is the phenomenon where sound lingers after the source has been cut off, and it can make successive syllables unclear if it lasts too long?

Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 2
Reverberation is the phenomenon where sound lingers after the source has been cut off. If the reverberation time is large, successive syllables uttered cannot be distinctly heard.
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Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 3

What characteristic of sound depends on the amplitude of the vibrating body producing the sound?

Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 3
Loudness is a characteristic of sound that depends on the amplitude of the vibrating body producing the sound. Greater amplitude results in a louder sound.
Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 4
What is the term for the change in frequency of a wave due to the motion of the source or observer?
Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 4
The Doppler effect refers to the change in frequency (and hence, pitch) of a wave, such as sound or light, due to the motion of the source or observer.
Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 5
Which material is a good reflector of sound waves?
Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 5
Steel is a good reflector of sound waves. It reflects sound effectively, and this property is used in various applications, including sonar systems.
Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 6
What is the speed of sound in air at 0°C?
Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 6
The speed of sound in air at 0°C is approximately 330 meters per second.
Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 7
What is the phenomenon where a body vibrates in response to a periodic force with a time period equal to its own free period?
Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 7
Resonance is the phenomenon where a body vibrates in response to a periodic force with a time period equal to its own free period. It occurs when the frequencies match.
Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 8
Why are soldiers advised to break step while crossing a suspension bridge?
Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 8
Soldiers are advised to break step while crossing a suspension bridge to avoid creating resonance. If their marching steps match the natural frequency of the bridge, it could lead to dangerous resonant vibrations.
Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 9
What type of wave is produced when sound waves bend due to differences in air temperature, causing them to travel faster in warm air than in cold air?
Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 9
Sound waves that bend due to differences in air temperature, with faster propagation in warm air and slower in cold air, are classified as longitudinal waves.
Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 10
Which property of sound is determined by the frequency of the vibrating source?
Detailed Solution for Test: Sound, Doppler Effect, Amplitude Time Period & Frequency - Question 10
Pitch is determined by the frequency of the vibrating source. A higher frequency corresponds to a higher pitch, while a lower frequency corresponds to a lower pitch.
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