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GLOSSARY

WAVES

Amplitude - The maximum distance from the crest to the equilibrium
Frequency ­ The number of oscillations per second
Period ­ Time taken for one complete oscillation
Speed ­ Distance travelled per unit time. Speed is the scalar quantity that is the magnitude of
the velocity vector.
Longitudinal…

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Photons- particle of light
Photoelectrons- Electrons that escape from the surface of a metal under the presence of
UV light that transfers energy to electrons
Work function- energy required to completely remove one electron from the metal
Threshold frequency- minimum frequency of light below which the emission of
photoelectrons cannot…

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