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If a simple pendulum oscillates with amplitude of 50mm and time period of 2s, then its maximum velocity is ?
Light can travel in a vacuum but not sound, because :
When sound travels from air to water, which parameter does not change ?
A boat at anchor is rocked by waves, whose crests are 100m apart and velocity is 25m/s. The boat bounces up once in every :
If a wave travelling at a speed of 130m/s and has a wavelength of 5m. Then found out the frequency of the wave?
The sound of lightning flash is heard 3 second after flash is seen. The distance of the lightning is 1020 metre. The speed of sound is:
Which of the following waves can be transmitted through solids, liquids and gases?
All the points above the mean position in a rope:
The distance between consecutive compression and rarefaction in a spring:
The velocity of sound in air would become double than its velocity at 0°C at temperature :
Laplace found that the alternate compression and rarefactions produced in sound waves follow:
If the successive overtones of a vibrating string clamped at its end are 280 Hz and 350 Hz, the frequency of fundamental is :
If the number of loops of a stationary wave are increasing, then:
When the antinodes are all at their extreme displacements, the energy stored is :
Doppler shift in frequency does not depend upon :
The source is moving on a stationary observer than the pitch of the sound will:
Star moving towards earth shows :
Which of the following explains that all the galaxies are receding from us ?
Total distance travelled by vibrating body in one vibration is equal to :
The SI unit of force constant is identical with that of:
Transverse waves can not be setup in:
What is it that we used to calculate the speed of distant stars and galaxies?
In a vibrating chord the point where the particles are stationary is called:
The speed of sound in air is 322 m/s. The speed of sound at 22°C will be:
Astronomers calculate the speed of distant stars and galaxies using which of the following phenomena?
Trough of a wave acts as :
Distance between two consecutive nodes is :
Infrasonic wave has frequency:
Ripple tank is used to study features of :
Crest and trough are found in :
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