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JEE Main & Advanced Physics Wave Optics / तरंग प्रकाशिकी Question Bank Doppler's Effect of Light

  • question_answer
    If the shift of wavelength of light emitted by a star is towards violet, then this shows that star is [RPET 1996; RPMT 1999]

    A)            Stationary                             

    B)            Moving towards earth

    C)            Moving away from earth

    D)            Information is incomplete

    Correct Answer: B

    Solution :

               Shifting towards ultraviolet region shows that apparent wavelength decreased. Therefore the source is moving towards the earth.


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