First slide

Hydrogen

Question

Among the radioactive elements tritium is used as better tracer because

Easy

A

it is cheaply available
B

it emits low energy β –rays
C

it does not emit γ –rays
D

all the above

Solution

$\large _1^3T\; \to _2^3He\; + _{ - 1}^oe$
Tritium on disinteqration gives β-rays, which are lower energy rays than δ-rays.

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