Which statements concerning light are true?

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It is part of electromagnetic spectrum.

It can be deflected by a magnet.

It consists of photons of same energy.

It is a form of energy.

answer is A, D.

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Detailed Solution

.(A) Light is a form of energy. The energy of light is given by the expression E=hν=hcνˉ=λ hc
(B) Light is a electromagnetic radiation and cannot be deflected by a magnet.
(C) Monochromatic light consists of photons of same energy. Polychromatic light consists of photons of different energy.
(D) Light (visible light) is a part of electromagnetic spectrum. UV and IR radiations are also part of electromagnetic spectrum

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