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WAVE LIKE BEHAVIOUR OF LIGHT
“Is light a wave or a stream of particles?” The fact is that light exhibits behaviors which are characteristic of both waves and particles. Here the focus will be on the wave-like nature of light.

Light exhibits certain […]

DOPPLER’S EFFECT
When a source generating waves moves relative to an observer, or when an observer moves relative to a source, there is an apparent shift in frequency.
If the distance between the observer and the source is increasing the frequency apparently decreases, whereas the […]