Question

Assertion :The electrical conductivity of a gas increases when X-rays or $\gamma$ -rays pass through it Reason: Ionization in the gas is produced by X-rays or $\gamma -rays$

• A. Assertion is True and Reason is True ; Reason is a correct explanation of Assertion
• B. Assertion is True and Reason is True but Reason is not a correct explanation of Assertion
• C. Assertion is True and Reason is False
• D. Assertion is False and Reason is True.

Answer 1

The correct option is A Assertion is True and Reason is True ; Reason is a correct explanation of Assertion

(Ionising power of different types of rays) or (Effects of radiation)
Radiation produce ionisation in the gases through which they are passed. The radiation cause number of molecules to lose electrons and pass into ions. Thus the gases become ionised increasing their conductivity.