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JEE Main & Advanced JEE Main Online Paper (Held On 23 April 2013)

  • question_answer
                    This question has Statement-1 and Statement -2. Of the four choices given after the Statements, choose the one that best describes the two Statements.                 Statement 1: Very large size telescopes are reflecting telescopes instead of refracting telescopes.                 Statement 2: It is easier to provide mechanical support to large size mirrors than large size lenses.     [JEE Main Online Paper ( Held On 23  April 2013 )

    A)                  Statement1 is true and Statement 2 is false.

    B)                                          Statement1 is false and Statement2 is true.

    C)                                         Statement1 and Statement 2 are true and Statement 2 is correct explanation for Statement 1.

    D)                                          Statement 1 and Statement 2 are true and Statement 2 is not the correct explanation for Statement 1.               

    Correct Answer: C

    Solution :

                      One side of mirror is opaque and another side is reflecting this is not in case of lens hence, it is easier to provide mechanical support to large size mirrors than large size lenses. Reflecting telescopes are based on the same principle except that the formation of images takes place by reflection instead of refraction.


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