Waves questions
1337 published questions with worked solutions.
- The displacement y of a particle on a straight line is given by y = f(x, t), as a function of time. Which of the following...
- Equation of a progressive wave is given by y = a ( t 2 - x 4 ), where t is in second and x is in metre. The distance in metre...
- In a travelling wave y = 0.1 (x - 330t + 2 3 ) (SI units). The phase difference between x_1 = 3 m and x_2 = 3.5 m is
- Equation of a plane progressive wave is given by y = 0.6 2 (t- x 2 ). On reflection from a denser medium, its amplitude becomes...
- A transverse sinusoidal wave of amplitude a, wavelength and frequency n is travelling on a stretched string. The maximum speed of...
- In a medium in which a transverse progressive wave is travelling, the phase difference between two points with a separation of...
- In the given progressive wave y = 5 (100 t - 0.4 x). What is the wave velocity (in m ,s^ -1 )?
- Two waves are propagating to the point P by two sources A and B of equal frequency. The amplitude of every wave at P is a and the...
- The equation of wave is represented by y = 10^ -3 (100t - x 10 ) m, then the velocity of wave will be
- A wave is represented by the equation y = 0.5 (10t + x) m. It is a travelling wave propagating along +x-direction with velocity
- The ratio of intensities between two coherent sound sources is 4 : 1. The difference of loudness in decibels (dB) between maximum...
- A man standing on a cliff claps his hand and hears its echo after 1 s. If sound is reflected from mountain and velocity of sound...
- A star is moving away from the earth with a velocity of 100 km/s. If the velocity of light is 3 10^ 8 m/s, then the shift of its...
- The apparent wavelength of the light from a star moving away from the earth is 0.01% more than the original wavelength. The speed...
- Two sinusoidal waves with same wavelengths and amplitudes travel in opposite directions along a string with a speed 10 m ,s^ -1 ....
- A train approaching a hill at a speed of 40 km/h sounds a whistle of frequency 580 Hz when it is at a distance of 1 km from a...
- A source of sound emitting a 1200 Hz note travels along a straight line at a speed of 170 m ,s^ -1 . A detector is placed at a...
- A person speaking normally produces a sound intensity of 40 dB at a distance of 1 m. If the threshold intensity for reasonable...
- Velocity of sound wave in air is 330 m/s for a particular sound in air ; a path difference of 40 cm is equivalent to a phase...
- A rocket is receding away from earth with velocity = 0.2 ,c. The rocket emits signal of frequency 4 10^ 7 Hz. The apparent...
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