MCQ
$\gamma$-decay occurs when
- APair annihilation takes place
- BEnergy is released due to conversion of neutron into proton
- ✓Energy is released due to de-excitation of nucleus
- DNone of these
✓
Answer
Correct option: C.
Energy is released due to de-excitation of nucleus
c
(c)
(c)
In gamma decay, a nucleus changes from a higher energy state to a lower energy state through the emission of electromagnetic radiation (photons). The number of protons (and neutrons) in the nucleus does not change in this process, so the parent and daughter atoms are the same chemical element.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In an ammeter, $5 \%$ of the main current passes through the galvanometer. If resistance of the galvanometer is G, the resistance of ammeter will be :
→The mass of a photo electron is
The time required to pass the light through a glass slab of $2 mm$ thick is (${\mu _{glass}} = 1.5$)
→The charge deposited on $4\,\mu F$ capacitor in the circuit is
→Find the maximum charge on the capacitor $C$ in the following circuit ............ $\mu C$
→The points resembling equal potentials are
In the Bohr's hydrogen atom model, the radius of the stationary orbit is directly proportional to ($n =$ principle quantum number)
→A fish rising vertically upward with a uniform velocity of $8\,ms ^{-1}$, observes that a bird is diving vertically downward towards the fish with the velocity of $12\,ms ^{-1}$. If the refractive index of water is $\frac{4}{3}$, then the actual velocity of the diving bird to pick the fish, will be $.......\,ms ^{-1}$.
→A carrot looks orange in colour because of the $\beta$ carotene molecule in it. This means that the $\beta$ carotene molecule absorbs light of wavelengths
→The focal lengths of the objective and eye-lens of a microscope are 1 cm and 5 cm respectively. If the magnifying power for the relaxed eye is 45, then the length of the tube is