Standing Waves on Strings

Nodes, antinodes, and fundamental frequency. Ideal for students preparing board exams and competitive tests.

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QUESTION NO 01

Amplitude of a wave is related to?

Answer: Loudness (for sound)

For sound, perceived loudness increases with amplitude (intensity).

Shahzad Mahota @shahzad-mahota

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QUESTION NO 02

Pitch of sound depends mainly on?

Answer: Frequency

Pitch correlates primarily with frequency.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

Resonance occurs when?

Answer: Driving frequency matches natural frequency

Resonance: large amplitude when drive ≈ natural frequency.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 04

Beats are heard when two sounds have?

Answer: Slightly different frequencies

Beat frequency = |f₁ − f₂|.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

Doppler effect is change in?

Answer: Observed frequency due to relative motion

Relative motion between source/observer shifts observed frequency.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 06

Node in a standing wave is a point of?

Answer: Zero displacement amplitude

Nodes have permanently zero displacement amplitude.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 07

Antinode is a point of?

Answer: Maximum displacement amplitude

Antinodes oscillate with maximum amplitude.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

Intensity of a wave is proportional to?

Answer: Square of amplitude

I ∝ A² for many wave types.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 09

Fundamental frequency of a string fixed at both ends is?

Answer: v/(2L)

For length L, f₁ = v/(2L).

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

Echo is due to?

Answer: Reflection of sound

An echo is a reflected sound returning to the listener.

Shahzad Mahota @shahzad-mahota

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Standing Waves on Strings

Amplitude of a wave is related to?

Pitch of sound depends mainly on?

Resonance occurs when?

Beats are heard when two sounds have?

Doppler effect is change in?

Node in a standing wave is a point of?

Antinode is a point of?

Intensity of a wave is proportional to?

Fundamental frequency of a string fixed at both ends is?

Echo is due to?

Published By

Shahzad Mahota

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Standing Waves on Strings

Amplitude of a wave is related to?

Explanation

Pitch of sound depends mainly on?

Explanation

Resonance occurs when?

Explanation

Beats are heard when two sounds have?

Explanation

Doppler effect is change in?

Explanation

Node in a standing wave is a point of?

Explanation

Antinode is a point of?

Explanation

Intensity of a wave is proportional to?

Explanation

Fundamental frequency of a string fixed at both ends is?

Explanation

Echo is due to?

Explanation

Published By

Shahzad Mahota

00

00

00

00

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