Question

Solution

Correct option is Doppler shift in wavelength is given by  SIMILAR QUESTIONS

Q1

A particle is executing simple harmonic motion along the x-axis with amplitude 4 cm and time period 1.2 s. The minimum time taken by the particle to move from x = +2 cm to x = +4 cm and back again is

Q2

Two waves are represented by the following equations:  The ratio of intensities I2/I1 will be

Q3

The velocity of sound in a diatomic gas is 300 ms–1. What is the rms velocity of its molecules?

Q4

The length of a sonometer wire AB is 100 cm. Where should the two bridges be placed from end A to divide the wire in three segments whose fundamental frequencies are the ratio of 1:2:3?

Q5

A toothed wheel is rotated at 120 r.p.m. A post card is placed against the teeth. How many teeth must the wheel have to produce a note whose pitch is the same as that of a tuning fork of frequency 256 Hz?

Q6

If a spring extend by x on loading, then the energy stored in the spring is (T is the tension in the spring and k its force constant)

Q7

A pulse travels along a stretched string and reaches the fixed end of the string. It will be reflected back with

Q8

At which temperature will the velocity of sound at 27oC become double?

Q9

The equation of a travelling wave is Where y is the microns, t in seconds and x in metres. The ratio of the maximum particle velocity and velocity of the wave is

Q10

A particle, with restoring force proportional to displacement and damping force proportional to velocity is subjected to a force F sin ωt. If the amplitude of the particle is maximum at ω = ω1 and its energy is maximum at ω = ω2, then (ω0 is the angular frequency of natural oscillations of the particle)