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QJEEM24Phed78: JEE Main 2024 Physics - Class 12 JEEM24Phed78 Solution: In a photoelectric effect experiment a light of frequency 1.5…
In a photoelectric effect experiment a light of frequency 1.5 times the threshold frequency is made to fall on the surface of photosensitive material. Now if the frequency is halved and intensity is doubled, the number of photo electrons emitted will be:
Multiple Choice Options
- A doubled
- B halved
- C Zero
- D quadrupled
Step-by-Step Verified Solution
Since \frac{\mathrm{f}}{2}<\mathrm{f}_0
i.e. the incident frequency is less than threshold frequency. Hence there will be no emission of photoelectrons.