A beam of light is converging towards a point I on a screen. A plane glass plate whose thickness in the direction of the beam = 1, refractive index = µ, is introduced in the path of the beam. The convergence point is shifted by

Question:

Options :

(a) t(1-1/µ) away
(b) t(1+1/µ) away
(c) t(1-1/µ) nearer
(d) t(1+1/µ) nearer

Answer :

(a) t(1-1/µ) away

Answer Steps :

step 1

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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