NextMockપરીક્ષાઓ શોધો, દા.ત. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2021

UPPCS · પ્રશ્ન 23

With reference to radioactivity, which of the following statements is/are correct? 1. Radioactivity is a nuclear property. 2. Hydrogen bomb is prepared on the principle of nuclear fission. Select the correct answer using the codes given below.

  1. Only 1
  2. Only 2
  3. Both 1 and 2
  4. Neither 1 nor 2
જવાબ બતાવો અને સમજૂતી

જવાબ: (A) Only 1

સમજૂતી

Radioactivity arises from unstable nuclei; the hydrogen bomb works on nuclear fusion (triggered by fission).