Physics-(general)
NEET Physics (general) Match the Following Question
Type: Match the Following-match the column-Easy-Class 12
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Thermionic emission | (i) Emission of electrons due to heating |
| (b) Photoelectric effect | (ii) Emission of electrons due to light |
| (c) Work function | (iii) Minimum energy needed for electron emission |
| (d) Threshold frequency | (iv) Frequency below which no electrons are emitted |
A
a-i, b-ii, c-iii, d-iv
B
a-ii, b-i, c-iv, d-iii
C
a-iii, b-iv, c-i, d-ii
D
a-iv, b-iii, c-ii, d-i
Correct Answer
Option A
Detailed Explanation
Thermionic emission refers to the emission of electrons due to heating, while the photoelectric effect involves emission due to light. The work function is the minimum energy needed for electron emission, and the threshold frequency is the frequency below which no electrons are emitted.
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