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Select the correct statements among the following:
A. Slow neutrons can cause fission in ²³⁵₉₂U than fast neutrons.
B. α-rays are Helium nuclei.
C. β-rays are fast moving electrons or positrons.
D. γ-rays are electromagnetic radiations of wavelengths larger than X-rays.
Choose the most appropriate answer from the options given below:

Asked in Re-NEET 2024 · Nature of alpha, beta and gamma radiation

Answer: (1) A, B and C only

Step-by-step solution

A: true (read as "more readily"), slow neutrons are captured by ²³⁵U far more readily than fast ones.

B: true, α particles are ⁴₂He nuclei.

C: true, β⁻ rays are electrons and β⁺ rays are positrons.

D: false, γ-rays have shorter wavelengths than X-rays.

So A, B and C only.

Why the other options are wrong

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