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The ratio of intensities of two waves is 2. The ratio of intensities of maxima and minima when these waves interfere is approximately

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Important Questions on Waves

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 41
The amplitude of a wave represented by the equation y=3sin(5x-0.5t)+4cos(5x-0.5t), is
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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 42
Two waves of equal amplitude when superposed, give a resultant wave having an amplitude equal to that of either wave. The phase difference between the two waves is
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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 43
The change in phase, if a wave is reflected at a less dense surface, is
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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 44
A person carrying a whistle emitting continuously a note of 272 Hz is running towards a reflecting surface with a speed 18 km h-1. The speed of sound in air is 345 ms-1. The number of beats heard by him is
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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 46
Two vibrating tuning forks are producing waves given by
y1=27 sin 600 πt and y2=27 sin 604 πt
These forks are sounded together near the ear of a person. The number of beats heard by him in three seconds is
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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 47
Two waves of frequencies 6 Hz and 10 Hz are superposed. The beat frequency produced is
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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 48
Two waves of wavelengths 99 cm and 100 cm produce 4 beats per second. Velocity of sound in the medium is
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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment Set-2>Q 49
A tuning fork produces 2 beats per second when sounded with another tuning fork of frequency 250 Hz. It gives the same number of beats per second when loaded with wax. The initial frequency of 1st tuning fork is