মূল বিষয়বস্তুতে যান

State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · প্রশ্ন 93

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

Electrons and protons
Protons and neutrons
Only electrons
Electrons and neutrons
None of the above / More than one of the above

উত্তর দেখান ও ব্যাখ্যা

উত্তর: (B) Protons and neutrons

ব্যাখ্যা

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

(A) ভুল
Wrong: electrons are outside the nucleus.
(B) সঠিক
Correct: the nucleus contains protons and neutrons (nucleons).
(C) ভুল
Wrong: incorrect.
(D) ভুল
Wrong: electrons are not in the nucleus.
(E) ভুল
Wrong: only one of the options A–D is correct.