By using Einstein's photoelectric equation, we have, KE=hv−ϕKE=hv−hv0=h(4v0)−hv0=3hv0 where, h= Planck’s constant, v&v0= frequencies, and ϕ= work function.
The threshold frequency of a photoelectric metal is v_0. If light of frequency 4 v_0 is incident on this metal, then the maximum kinetic energy of…
NEET UG 2022 — Physics Modern Physics
2022mcqeasy
The threshold frequency of a photoelectric metal is v0. If light of frequency 4v0 is incident on this metal, then the maximum kinetic energy of emitted electrons will be:
Official previous-year question
Held on 30 Apr 2022 · Verified 9 Jul 2026.
Options
- A
hv0
- B
2hv0
- C
3hv0
- D
4hv0
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