Physics-(general)
NEET Physics (general) Match the Following Question
Type: Match the Following-match the column-Medium-Class 12
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Vacuum diode | (i) Controlled flow of electrons |
| (b) Triode | (ii) Three electrodes |
| (c) Tetrode | (iii) Two electrodes |
| (d) Pentode | (iv) Four electrodes |
A
a-iii, b-ii, c-iv, d-i
B
a-ii, b-i, c-iv, d-iii
C
a-iv, b-ii, c-i, d-iii
D
a-ii, b-iv, c-iii, d-i
Correct Answer
Option A
Detailed Explanation
A vacuum diode has two electrodes (cathode and anode), a triode has three electrodes (cathode, plate, and grid), a tetrode has four electrodes, and a pentode has five electrodes. This matches the definitions of these devices as stated in the NCERT context.
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