Recent questions tagged physics

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What is a quasi-static process?

asked Oct 4, 2021 in Class-XI-PHYSICS by Sandeepthukran

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Consider the case of normal modes of vibration for the air column with only one end closed. What is the length of the air column for the fundamental harmonic?

asked Oct 3, 2021 in Class-XI-PHYSICS by AdilsonLima

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Two interfering waves have a frequency of 2Hz & 6Hz. What is the beat frequency?

asked Oct 3, 2021 in Class-XI-PHYSICS by AdilsonLima

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Two longitudinal waves: s1 = 3cos(11t) & s2 = 3cos(10t) interfere. What is the amplitude of the resulting wave?

asked Oct 3, 2021 in Class-XI-PHYSICS by AdilsonLima

+1 vote

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An observer is standing stationary in air moving at a speed of 2m/s. A source of frequency 20Hz is moving in the direction of wind with speed 10m/s towards the observer. W

asked Oct 3, 2021 in Class-XI-PHYSICS by AdilsonLima

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A train with a frequency ‘f’. What will be the frequency heard by a person sitting in the train? Speed of the train is ‘v’.

asked Oct 3, 2021 in Class-XI-PHYSICS by AdilsonLima

+1 vote

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If both the source of sound and observer are moving, the apparent frequency will be different from the actual frequency. True or False?

asked Oct 3, 2021 in Class-XI-PHYSICS by AdilsonLima

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