Physics question and answers for March 24, 2024
- Q Complete destructive interference occurs when waves are out of phase by a 1 wavelength b wavelength c wave length d Multiple wavelengths e None of the above Which of the...
- Q Maxwell s theory of electromagnetic waves was experimentally tested by Oersted Tesla min sec Hertz
- Q Consider two identical plane waves having the same phase shift one is propagating in x direction while the other is propagating in y direction One can say they will have...
- Q 28 Which of the following statement is false for the properties of electromagnetic waves a Both electric and magnetic field vectors attain the maxima and minima at the same place...
- Q On observing light from three different stars P Q and R it was found that intensity of violet colour is maximum in the spectrum of P the intensity of green...
- Q 7 i In biprism experiment the eye piece was placed at a distance of 120 cm from the source The distance between two virtual images was found to be 0...
- Q Q 12 A particle is oscillating according to the equation X 7 cos 0 5 nt where t is in second The point moves from the position of equilibrium to...
- Q in a pipe closed at one end is made to vibrate in its third overtone by a tuning fork of frequency 660 Hz The speed of sound in air is...
- Q Eleven tuning forks are arranged in an ascending order of frequencies If each tuning fork produces 8 beats per second with the previous one If the frequency of last fork...
- Q The device for the demonstration of sound interference has first two identical upper and lower acoustic ducts At what minimum distance in meters is it necessary to lower the lower...
- Q A plane progressive sound wave of frequency 160 Hz is moving along vector 31 4j Find phas difference between point A 1 0 2 and point B 3 1 4...
- Q Two waves represented by the following equations are travelling in the same medium y 5 sin 2m 75t 0 25x y 10 sin 2 150t 0 50x The intensity ratio...
- Q The same progressive wave is represented by two graphs I and II Graph I shows how the displace ment y varies with the distance x along the wave at a...
- Q How can the wave velocity decrease when the density increases because when the density increases the particles come closer and therefore the wave should travel faster Also in solids sound...
- Q A plane progressive simple harmonic sound wave of angular frequency 680 rad s moves with speed 340 m s in the direction which makes equal angle with each x y...
- Q The original frequency of the note produced by a sonometer is n The sonometer wire is reduced in length to half of its original value and its tension increases four...
- Q the place of the listener Speed of sound in air 320 m s 12 51 tuning fork are arranged in a series in such a way that each fork produce...
- Q Figure shows a snapshot of a vibrating string at t 0 The particle P is observed moving up with velocity 20 3 cm s The tangent at P makes an...
- Q If the speed of the wave shown in the figure is 330 m s in the given medium then the equation of the wave propogating in the positive x direction...
- Q other at a particular point Amplitude and frequency of both the waves are equal The ratio of intensities when both waves reach in the same phase and they reach with...
- Q 2 A wave of wavelength 400 nm superimposes with another wave coherent with first of same wavelength If the path difference between the waves is 300 nm then the resultant...
- Q Plot the corresponding reference circle for each of the following simple harmonic motions Indicate the initial t 0 position of the particle the radius of the circle and the angular...
- Q 30 An isotropic stationary source is emitting waves 6 of frequency n and wind is blowing due north An observer A is one north of the source while observer B...
- Q Which of the following statements is are correct for mechanical standing wave on a stretched wire A Elastic potential energy of a small element at antinode is constant and minimum...
- Q 2 Assume the sun rises at 5 30 a m 6 a m and 6 30 a m in Kolkata Bhopal and Ahmedabad respectively You re in a helicopter that...
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