From a wave equation
the frequency of the wave is
5 Hz
15 Hz
20 Hz
25 Hz
The waves, in which the particles of the medium vibrate in a direction perpendicular to the direction of wave motion, is known as.
Transverse waves
Longitudinal waves
Propagated waves
None of these
The transverse wave represented by the equation has
amplitude = 4π
speed of propagation = 5
A standing wave is represented by y = asin (100t) cos(0.01)x, where y and a are in millimetre, t in second and x is in metre. Velocity of wave is
104 m/s
1 m/s
10-4 m/s
A uniform string is vibrating with a fundamental frequency ' f '. The new frequency, if radius and length both are doubled, would be
2 f
3 f
Two waves are approaching each other with a velocity of 20 m/s and frequency n. The distance between two consecutive nodes is
The tension in piano wire is 10 N. What should be the tension in the wire to produce a note of double the frequency ?
5 N
20N
40 N
80 N
Newton's formula for the velocity of sound in gases is
The frequency of a simple harmonic wave is given by where x and y are in meter and time is in second. The period of the wave in second will be
0.04
0.01
1
5
A stone thrown into still water, creates a circular wave pattern moving radially outwards. If r is the distance measured from the centre of the pattern, the amplitude of the wave varies as.
r-1/2
r-1
r-3/2
r-2
