Waves

Question 1

Mechanic waves

Answer 1

Sound waves , water waves
Need a medium to travel through ( air )

Question 2

Electromagnetic waves

Answer 2

Light waves radio waves
Do not need a medium they can travel through vacuums

Question 3

Oscillators

Answer 3

Things which move with a regular to and fro motion are said to oscillate or vibrate

Question 4

Amplitude

Answer 4

Maximum displacement of a particle from its central position

Question 5

Frequency

Answer 5

The number of complete oscillations per second

Question 6

Periodic time

Answer 6

The time a vibrating object takes to make one complete oscillation

Question 7

Velocity

Answer 7

V of a wave is the speed at which it moves through a medium or vacuum

Question 8

The wavelength

Answer 8

Lambda is the distance between two successive crests in a wave

Question 9

Transverse waves

Answer 9

Light waves , water waves
Waves in which the displacement of the particles is at right angles to the direction of travel of the wave motion

Question 10

Longitudinal waves

Answer 10

Sound wave
Waves in which the displacement of the particles is in line with or parallel to the direction of travel and wave motion

Question 11

Real sign convention

Answer 11

Real is positive
anything Infront of mirror

Question 12

Virtual sign convention

Answer 12

Virtual is negative