A ray of light incident at an angle 0 on a refracting face of a prism emerges from the other face normally. If the angle of the prism is 5º and the prism is made of a material of refractive index 1.5, the angle of incidence is

Question:

Options :

(a) 7.5 degree
(b) 5 degree
(c) 15 degree
(d) 2.5 degree

Answer :

(a) 7.5 degree

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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