CBSE Class 12 · 2014 · Delhi · Modern PhysicsVery Short Answer

Why is it found experimentally difficult to detect neutrinos in nuclear

β

-decay?

Answer: Chargeless, nearly massless and very weakly interacting.

Solution

Neutrinos (and antineutrinos) carry no electric charge and have negligible (nearly zero) rest mass, and they interact with matter only through the extremely weak interaction.
Consequently they pass through enormous thicknesses of matter almost without interacting, which makes them very difficult to detect.

Chargeless, nearly massless, interact only very weakly

CBSE Class 12 Board · 2014 · Delhi · Subjective

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