Solved papers for JEE Main & Advanced JEE Main Online Paper (Held on 9 April 2013)

done JEE Main Online Paper (Held on 9 April 2013) Total Questions - 1

• question_answer1)                                 Light is incident from a medium into air at two possible angles of incidence (a) \[{{20}^{0}}\] and (b)\[{{40}^{0}}\] In the medium light travels 3.0 cm in 0.2ns. The ray will :                   JEE Main Online Paper (Held On 09 April 2013)
  A)
                  suffer total internal reflection in both cases (a) and (b)                
  done clear
  B)
                  suffer total internal reflection in cases (b) only                
  done clear
  C)
                  have partial reflection and partial transmission in case (b)                
  done clear
  D)
                  have 100% transmission in case (a)                
  done clear
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