Year: 2020
Topic: Wave Optics
Time :
1. The Brewsters angle \(i_b\) for an interface should be
(1). \(30^\circ\, <\, i_b\, <\, 45^\circ\)
(2). \(45^\circ\, <\, i_b\, <\, 90^\circ\)
(3). \( i_b\, =\, 90^\circ\)
(4). \(0^\circ\, <\, i_b\, <\, 30^\circ\)