Malus\'s law predicst (a) I = I_max cos^2 phi (b) I = I_max/cos^2 phi (c) I = I_

Question

Malus's law predicst (a) I = I_max cos^2 phi (b) I = I_max/cos^2 phi (c) I = I_max cos phi (d) None Brewster's law is (a) tan theta_p = n_b/n_a (b) tan theta_p = n_b/n_a (c) tan theta_p = n_b/n_a (d) None Hyperopic eye needs correction by (a) Diverging lens (b) Converging lens (c) Both (d) None The angular magnification (M) of a simple magnifier is (a) 25 cm X f (b) 25 cm/f (c) f/25 cm (d) None Fresnel diffraction is for source and screen are (a) Far apart (b) Close (c) Both (d) None Location of the dark fringes (y_m) of Fraunhofer diffraction at (a) xm lambda/a (b) xm lambda/a (c) a/xm lambda (d) None Maxima of a several-slit diffraction is due to path difference d sin theta = (a) m/lambda (b) m lambda (c) lambda/m (d) None Bragg condition in X-ray diffraction for constructive interference is (a) d sin theta = m lambda (b) 2d sin theta = m lambda (c) 4 sin theta = m lambda (d) None Theory of Relativity describes (a) Time interval betwe

Explanation / Answer

According to the given problem,

1.) Answer: [A]

2.) Answer: a,b,c are the same

3.) Answer: [B] Coverging lens

4.) Answer:[B] 25/f

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