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NEET AIPMT SOLVED PAPER SCREENING 2005

  • question_answer
                    The angular resolution of a 10 cm diameter telescope at a wavelength of \[5000\overset{\text{o}}{\mathop{\text{A}}}\,\] is of the -order of:                                                                                                                                                                                                

    A)                 \[{{10}^{6}}rad\]

    B)                 \[{{10}^{-2}}rad\]

    C)                 \[{{10}^{-4}}\,rad\]

    D)                    \[{{10}^{-6}}rad\]

    Correct Answer: D

    Solution :

                    Angular resolution \[=\frac{1.22\lambda }{d}\]                                 \[=\frac{1.22\times 5000\times {{10}^{-10}}}{10\times {{10}^{-2}}}\]                                 \[=6.1\times {{10}^{-6}}\]                                 \[\approx \,{{10}^{-6}}\,\text{rad}\]


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