MCQ
A metal surface emits photo electrons, when the incident radiation possesses minimum.....
- ✓Frequency
- BIntensity
- CVelocity
- DWave-length
✓
Answer
Correct option: A.
Frequency
a
The minimum frequency required for the emission of electrons is called threshold frequency below which no photoelectron is emitted. This is denoted by $v_0$.
The minimum frequency required for the emission of electrons is called threshold frequency below which no photoelectron is emitted. This is denoted by $v_0$.
The minimum energy required for the emission of photoelectrons from metal is called work function of that metal $W$.
$W = h v _0$
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