A ray of light is incident at 60° on one face of a prism of angle 30° and the emergent ray makes 30° with the incident ray. The refractive index of the prism is

Question:

Options :

(a) 1.732
(b) 1.414
(c) 1.5
(d) 1.33
(e) 1.6

Answer :

(a) 1.732

Answer Steps :

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Forty electric bulbs are connected in series across a 220 V supply. After one bulb is fused, the remaining 39 are connected again in series across the same supply. The illumination will be

If a body is executing simple harmonic motion then

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