The most penetrating radiation out of the following are (a) β -rays (b) γ -rays (c) X-rays (d) α -rays.

Answer: (b). Penetrating power increases with lower charge and higher photon energy: α < β < γ. γ -rays are uncharged and have higher energy than X-rays, so they penetrate most. So the answer is (b) γ -rays.

The most penetrating radiation out of the following are | NEET 1997 (AIPMT)

Q44NEET 1997 · AIPMTEasy

Radioactive Decays: Alpha, Beta, Gamma

The most penetrating radiation out of the following are

Show answer and solution

Answer: (b)

Penetrating power increases with lower charge and higher photon energy: $\alpha < \beta < \gamma$ .
$\gamma$ -rays are uncharged and have higher energy than X-rays, so they penetrate most.
So the answer is (b) $\gamma$ -rays.

Report a mistake

More questions on Radioactive Decays: Alpha, Beta, Gamma

What is the respective number of α and β particles emitted in the following radioactive…NEET 1995 (AIPMT)
In the nuclear decay given below AZX → AZ+1Y → A-4Z-1B* → A-4Z-1B, the particles emitted…NEET 1993 (AIPMT)
The nucleus ₆C¹² absorbs an energetic neutron and emits a beta particle ( β). The…NEET 1990 (AIPMT)
An element A decays into element C by a two step process A → B + ₂He⁴; B → C + 2e⁻ ThenNEET 1989 (AIPMT)
The nucleus ¹¹⁵₄₈Cd, after two successive β -decay will giveNEET 1988 (AIPMT)
A radioactive nucleus AZX undergoes spontaneous decay in the sequence AZX → Z-1B → Z-3C →…MHT CET 2026 (15 May, Shift 2)
In transition 'a', three α particles and two β particles are emitted in succession from…MHT CET 2026 (12 May, Shift 1)
A radioactive element ²⁴²₉₂X emits two α particles, one electron and two positrons. The…MHT CET 2025 (23 Apr, Shift 2)

Radioactive Decays: Alpha, Beta, Gamma question from NEET 1997 (AIPMT)

More questions on Radioactive Decays: Alpha, Beta, Gamma