A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Correct Answer: C
Solution :
Intensity of X-rays (I) is proportional to the filament current and also to the square of the voltage. It is well known that intensity of X-rays depends on the number of photons emitted per second from target.
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