NextMockपरीक्षा शोधा, उदा. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2023

BPSC – Combined Competitive Examination · प्रश्न 16

A photoelectric cell is a device which:

  1. converts light energy into electrical energy
  2. converts electrical energy into light energy
  3. stores light energy
  4. None of the above
उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (A) converts light energy into electrical energy

स्पष्टीकरण

Photoelectric cells convert incident light into electric current (used in sensors, automatic doors, solar cells).

  • (A) बरोबर

    Correct: it uses the photoelectric effect to produce current from light.

  • (B) चूक

    Wrong: that is a bulb/LED.

  • (C) चूक

    Wrong: it does not store energy.

  • (D) चूक

    Wrong: option A is correct.