physics

Max/minimum points on a wave

Height of wave from any point from equilibrium position

Distance between successive points on neighbouring waves

Number of cycles per second

Regular repeating motion of a wave

Maximum displacement of a wave from the equilibrium position

Time taken for one complete wave

T= 1/f

– Oscillations are perpendicular to the direction of motion.

Oscillations are parallel to the direction of motion. Has compressions and rarefactions.

Surface water waves, EM waves, light waves

sound, ultra sound waves

v=fx x- wavelength in meters f- frequency v- wave speed

measures by how much one wave travels further than the other from their starting point

measures by how much 2 or more waves or pints on a wave are in a phase, in anti-phase or out of phase

odd number of pie c

even number of pie c

if the aperture is the same size of the wavelength the waves are diffracted more

only ends of wavelength get diffracted

majority of waves get reflected

continuous signals more affected by noise and can’t re generate original signals which cause for less info can be converted to a digital

discrete data signals can be regenerated and sent over a large distance can be encrypted so no 3rd parties can hack

using ADC which provides a digital representation of an analogue signal at any time use ADC to transfer signals over a long distance convert so they can multiply by computers using sampling data

high reflective index to allow TIR to happen very narrow to reduce modal dispersion highly transparent to minimise light absorption.