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Electromagnetic spectrum
Want more info? http://www.bbc.co.uk/learningzone/clips/10677.flv
OPTICAL FIBRES
The infrared rays are totally
internally reflected (T.I.R) because
the reflection angle is above the
critical angle
HELP!! http://www.bbc.co.uk/learningzone/clips/12236.bb.rm
RED-SHIFT The opposite of red shift is blue shift when the colours are shifted
towards the red end of the spectrum/
Doppler effect: apparent increase in wavelength BUT decrease in
frequency for sound
NUCLEUR RADIATION Need more revision? http://www.bbc.co.uk/learningzone/clips/4561.bb.rm
<Penetration
Alpha & beta are deflected in
a magnetic field, gamma isn't…read more

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