Ppt priyaraj

WELCOME

Name: Priya Raj. ROption: Physical ScienceReg.No: 182 14 303 025

WAVESA wave is an oscillation accompanied by a

transfer of energy that travels through space or mass.

Wave motion transfers energy from one point to another.

WAVE MOTION

A wave motion is the propagation of disturbance from the point of a medium to other parts of it.

Types of waves

A mechanical wave is just a disturbance that propagate through a medium. The medium could be air, water, a spring, the Earth, or even people. Example of mechanical wave: sound, water waves, earthquakes, etc.

An electro magnetic wave is simply light of a visible or invisible wavelength. Oscillating intertwined electric and magnetic fields comprise light. Light can travel without medium.

A matter wave is a term used to describe particles like electrons that display wavelike properties.

A gravity wave is a ripple in the “fabric of space time” itself. They are predicted by Einstein’s theory of relativity, but they’re very difficult to detect.

Types of Mechanical wavesMechanical waves need a physical medium.

The particles in the medium can move in two different ways: either perpendicular or parallel to direction of the wave itself.

In a longitudinal wave, the particles in the medium move parallel to the direction of the wave.

In a transverse wave, the particles in the medium move perpendicular to the direction of the wave.

A surface wave is often a combination of the two. Particles typically move in circular or elliptical paths at the surface of the medium.

Longitudinal

Parallel

Transverse

Perpendicular

Surface

Combo

Transverse Wave

A transverse wave is a wave in which the particles of the medium vibrate perpendicular to the direction of propagation of the wave.

Examples of transverse waves

Light waves Radio waves Water wave UV rays X rays

Longitudinal waves

A longitudinal wave is a wave in which the particles of the medium vibrate in a direction parallel to the direction of propagation of the wave.

Examples of longitudinal waves Sound waves

Waves in slink Vibration in gases Oscillation in spring Tsunami waves

Characteristics of transverse waves

a) Wave length: It is the distance between any two consecutive points which are in the same state of vibration.

b) Crust: It is the elevated portion of the wave.

c) Trough: It is the depressed portion of the wave.

d) Frequency: It is the number of cycles per second

Velocity of a wave

= frequency of the wave * wavelength of the wave

THANK YOU