Page 21 - WAVES

6.2 Reflection of waves

• Reflection of waves occurs when a wave Lamphouse

strikes an obstacle.
• The wave undergoes a change in direction To cell and

of propagation when it is reflected. rheostat
• The value of frequency (f), wavelength Down for circular
waves
(λ) and speed (v) remain the same after Straight wave
reflection. dipper
Rubber
Law of Reflection: Band

Incident angle, i = Reflected angle, r Reflector Sponge

beach
Incident wave : Water

the wave before it strikes the
obstacle
Reflected wave: Complete the diagrams to show reflection of water

the wave which has undergone a waves.
change in direction of propagation white screen

after reflection. a) b)

i = angle of incident – the angle

between the direction of propagation
of incident wave and the normal

r = angle of reflection – the angle
between the direction of propagation

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