Waves questions
1337 published questions with worked solutions.
- An observer moves towards a stationary source of sound with a velocity equal to one-fifth of the velocity of sound. The...
- In the wave equation y = 0.5 ((2 / )(400t - x)) m, the velocity of the wave will be :
- The frequency of echo will be _____ Hz if the train blowing a whistle of frequency 320 Hz is moving with a velocity of 36 km/h...
- A tuning fork of frequency 340 Hz resonates in the fundamental mode with an air column of length 125 cm in a cylindrical tube...
- The velocity of sound in a gas, in which two wavelengths 4.08 m and 4.16 m produce 40 beats in 12 s, will be:
- The speed of a transverse wave passing through a string of length 50 cm and mass 10 g is 60 ms^ -1 . The area of cross-section of...
- A longitudinal wave is represented by x = 10 sin 2 (nt - x/ ) cm. The maximum particle velocity will be four times the wave...
- A person driving car at a constant speed of 15 m/s is approaching a vertical wall. The person notices a change of 40 Hz in the...
- A guitar string of length 90 cm vibrates with a fundamental frequency of 120 Hz. The length of the string producing a fundamental...
- The engine of a train moving with speed 10 ms^ -1 towards a platform sounds a whistle at frequency 400 Hz. The frequency heard by...
- An organ pipe 40 cm long is open at both ends. The speed of sound in air is 360 ms^ -1 . The frequency of the second harmonic is...
- The energy of an electromagnetic wave contained in a small volume oscillates with
- A transverse harmonic wave on a string is given by y(x, t) = 5 sin (6t + 0.003 x) where x and y are in cm and t in sec. The wave...
- A car P travelling at 20 ms^ -1 sounds its horn at a frequency of 400 Hz. Another car Q is travelling behind the first car in the...
- A wire of density 8 10^3kg/m^3 is stretched between two clamps 0.5 m apart. The extension developed in the wire is 3.2 10^ -4 m....
- The electric field in an electromagnetic wave is given as E =20 (t- x c ) j NC^ -1 where and c are angular frequency and velocity...
- The equation of wave is given by Y = 10^ -2 2 (160t-0.5x+ /4) Where Y and X are in m and t in s. The speed of the wave is...
- For a certain organ pipe, the first three resonance frequencies are in the ratio 1:3:5 respectively. If the frequency of fifth...
- In an experiment with sonometer when a mass of 180 g is attached to the string, it vibrates with fundamental frequency of 30 Hz....
- The fundamental frequency of vibration of a string between two rigid support is 50 Hz. The mass of the string is 18 g and its...
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