Railways Sample Paper RRB (Group D) Sample Test Paper-5

  • question_answer
    Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit

    A)  X-rays 

    B)  ultraviolet light

    C)  Visible light

    D)  radio waves

    Correct Answer: C

    Solution :

    Not Available  


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