Waves

Question 1

What is progressive wave?

Answer 1

movement of disturbance from source which transfers energy from source to places around it by means of vibrations or oscillations.

Question 2

Wavelength?

Answer 2

Distance between two consecutive points on a wave which are in phase.

Question 3

Speed of a wave definition?

Answer 3

v=f(wavelength), speed of propagation of the energy

Question 4

Transverse Wave?

Answer 4

Wave in which the oscillations of the wave particles is perpendicular to the direction of the propagation of the wave

Question 5

Longitudinal Wave?

Answer 5

Wave in which the oscillations of the wave particles are parallel to the direction of propagation of the wave.

Question 6

What is intensity?

Answer 6

Rate of energy flow per unit time per unit cross-sectional area perpendicular to the direction of wave propagation

Question 7

Formula for intensity?

Answer 7

Power divided by area, energy divided by time x area

Question 8

For wave sources, rs between intensity and amplitude?

Answer 8

Intensity proportional to amplitude ^2

Question 9

Meaning of polarisation?

Answer 9

When oscillations of the wave particles are only in one direction in a plane normal to the direction of propagation