Match the following

COLUMN-I

COLUMN-II
I) Light of frequency 1.5 times threshold frequency is incident on metal. If frequency is halved and intensity doubled, then photo current P) Doubled
II) Light of frequency 4 times threshold frequency incident on metal. If frequency is halved and rate of incidence of photons doubled, then photo current _____ Q) Zero
III) If the frequency of light in photoelectric experiment doubled then maximum KE of photoelectron become R) More than double
IV) A point source is moved towards the emitting metal then stopping potential become S) Remains same

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$I-P, II-Q, III-R, IV-S$

$I-S, II-P, III-R, IV-Q$

$I-P, II-R, III-Q, IV-S$

$I-Q, II-P, III-R, IV-S$

answer is D.

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Detailed Solution

Light of frequency 1.5 times the threshold frequency is incident on metal. If frequency is halved and intensity doubled, then photo currentbecomes zero because frequency will be less than the threshold frequency.
Light of frequency 4 times the threshold frequency incident on metal. If frequency is halved and the rate of incidence of photons doubled, then photo current also doubles because it is directly proportional to the rate of incidence of photons
If the frequency of light in photoelectric experiment doubles, then maximum KE of photoelectron becomes more than double.
A point source is moved towards the emitting metal then stopping potential remains same.

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	COLUMN-I		COLUMN-II
I)	Light of frequency 1.5 times threshold frequency is incident on metal. If frequency is halved and intensity doubled, then photo current	P)	Doubled
II)	Light of frequency 4 times threshold frequency incident on metal. If frequency is halved and rate of incidence of photons doubled, then photo current _____	Q)	Zero
III)	If the frequency of light in photoelectric experiment doubled then maximum KE of photoelectron become	R)	More than double
IV)	A point source is moved towards the emitting metal then stopping potential become	S)	Remains same