2. Sample Papers
  3. SSC

SSC Sample Paper SSC CGL - Sample Paper-18

  • question_answer
    The unit of luminous efficiency of an electric bulb is

    A) Watt                            

    B) lumen

    C) Lux                              

    D) lumen /watt

    Correct Answer: D

You need to login to perform this action.
You will be redirected in 3 sec spinner