Ray Optics · JEE Main previous year questions

2018 3 questions

1. Q482018 · 16 Apr 2018 · Shift 1

   A ray of light is incident at an angle of $60^{\circ }$ on one face of a prism of angle $30^{\circ }$. The emergent ray of light makes an angle of $30^{\circ }$ with incident ray. The angle made by the emergent ray with second face of prism will be :

   1. A.$0^{\circ }$
   2. B.$90^{\circ }$
   3. C.$45^{\circ }$
   4. D.$30^{\circ }$
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   Answer: B

2. Q412018 · 15 Apr 2018 · Shift 1
   
   1. A.1.50
   2. B.1.55
   3. C.1.75
   4. D.1.51
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   Answer: B

3. Q472018 · 15 Apr 2018 · Shift 1
   
   1. A.(A), (D)
   2. B.(A), (C), (D)
   3. C.(B), (D)
   4. D.(B), (C)
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   Answer: B