Waves

In transverse waves, the distance between the two consecutive points having the same phase of periodic motion is called

• amplitude

• twice of amplitude

• half of amplitude

• none of these

With the propagation of a longitudinal wave through a material medium, the propagation is

• Energy

• Energy and mass

• Energy and momentum

• Energy, mass and momentum

At what temperature, the velocity of sound will be double its value at 273 K?

• 2 x 273K2 x 273K

• 4 x 273K

• 8 x 273K

• 16 x 273K

The diagram below shows the propagation of a wave. Which points are in the same phase?

• F and G

• B and G

• C and E

• B and F

Source of the sound of freq. 600Hz is placed inside water. Speed of sound in water is 1500m/s & in the air it is 300m/s. Freq. of sound in air is

• 150 Hz

• 300 Hz

• 450 Hz

• 600 Hz

When the pressure of a certain gas is doubled by keeping the temperature constant, the speed of sound through it becomes

• also, double

• halved

• the square root of 2 times

• remain unchanged

The difference of speed of sound at t°C to the speed of sound at 0°C per unit rise in temperature is equal to --

• 6.1 cm/s

• 61 mm/s

• 0.61 m/s

• all of these

A tuning fork of 480Hz is sound with a fork to produce 5 beats/s. But loading of 480 Hz fork reduces the beats to 3 beats/s. Freq. of fork changes to

• 475 Hz

• 476 Hz

• 477 Hz

• 478 Hz

In a stationary wave, every particle performs SHM except

• nodal points

• antinode points

• points of constant magnitude

• none of these

A one-meter long string establishes two loops, the wavelength of the wave is

• 0.25 m

• 0.5 m

• 1 m

• 2 m