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Railways General Science & Technology Wave Optics / तरंग प्रकाशिकी Sample Paper Wave Optics Sample Test Paper-7

  • question_answer
    If the shift of wavelength of light emitted by a star is towards violet, then this shows mat star is

    A)  Stationary

    B)  Moving towards earth

    C)  Moving away from earth

    D)  Information is incomplete.

    Correct Answer: B

    Solution :

    [b] Shifting towards violet region shows that apparent wavelength has decreased. Therefore the source is moving towards the earth.


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