NextMockपरीक्षा शोधा, उदा. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · प्रश्न 93

Which fundamental particles are found in the nucleus of an atom?

  1. Electrons and protons
  2. Protons and neutrons
  3. Only electrons
  4. Electrons and neutrons
  5. None of the above / More than one of the above
उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (B) Protons and neutrons

स्पष्टीकरण

Protons and neutrons form the nucleus; electrons orbit around it.

  • (A) चूक

    Wrong: electrons are outside the nucleus.

  • (B) बरोबर

    Correct: the nucleus contains protons and neutrons (nucleons).

  • (C) चूक

    Wrong: incorrect.

  • (D) चूक

    Wrong: electrons are not in the nucleus.

  • (E) चूक

    Wrong: only one of the options A–D is correct.