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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-2

  • question_answer
    With which of the following instruments does a sailor in a submarine see the objects on the surface of sea?

    A)  Periscope         

    B)  Telescope

    C)  Gyroscope       

    D)  Stereoscope

    Correct Answer: A

    Solution :

    A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light). A gyroscope is a device used for measuring or maintaining orientation and angular velocity. A stereoscope is a device for viewing a stereoscopic pair of separate images as a single three-dimensional image.


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