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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2001

  • question_answer
    In Young's double slit experiment, the screen is kept at a distance 2m from source. The distance between light wavelength of 6000\[\overset{o}{\mathop{\text{A}}}\,\]and phase mode source is 4 mm. The band width will be

    A)  0.2 m           

    B)  2 cm

    C)  20 cm           

    D)  0.03 cm

    Correct Answer: D

    Solution :

     \[\beta =\frac{D\lambda }{d}=\frac{2\times 6000\times {{10}^{-10}}}{4\times {{10}^{-3}}}=3\times {{10}^{-4}}m\] \[=0.03\text{ }cm\]


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