Waves Test - 34...

A broadcasting station transmits waves of frequency $$71 \times 10^4 Hz$$ with a speed of $$3 \times 10^8 m/s$$. The wavelength of the wave is :

A certain transverse sinusoidal wave of wavelength $$20\ cm$$ is moving in the positive $$x-$$ direction. The transverse velocity of the particle at $$x = 0$$ as a function of time is shown. The amplitude of the motion is

An open pipe of length $$33$$cm resonates with frequency of $$1000Hz$$. If the speed of sound is $$330ms^{-1}$$, then this frequency is

A particle of mass $$0\cdot 50\ kg$$ executes a simple harmonic motion under a force $$F = -(50\ N/m)x$$. If it crosses the centre of oscillation with a speed of $$10\ m/s$$, then the amplitude of the motion is

A broadcasting station transmits waves of frequency $$71\times 10^4Hz$$ with speed of $$3\times 10^8m/s$$. The wavelength of the wave is :

Two wave pulses travel in opposite directions on a string and approach each other. The shape of the one pulse is the invert with respect to the other, then

Speed of sound in air is $$350ms^{-1}$$, fundamental frequency of an open organ pipe of $$50$$cm length will be

The amplitude of an oscillating simple pendulum is 10 cm and its time period is 4 s. Its speed after 1 s when it passes through its equilibrium position is:

Unit of frequency is........................

Energy is not propagated by