JEE Mains · Physics · STD 11 - 1. units,dimensions and measurement
Match the LIST-I with LIST-II
| List-I | List-II |
|---|---|
| A. Planck's constant | I. \(ML^2T^{-2}\) |
| B. Stopping potential | II. \(T^{-1}\) |
| C. Work function | III. \(ML^2T^{-1}\) |
| D. Threshold frequency | IV. \(ML^2T^{-3}A^{-1}\) |
Choose the correct answer from the options given below:
- A A-III, B-IV, C-I, D-II
- B A-I, B-II, C-III, D-IV
- C A-IV, B-III, C-I, D-II
- D A-I, B-IV, C-III, D-II
Answer & Solution
Correct Answer
(A) A-III, B-IV, C-I, D-II
Step-by-step Solution
Detailed explanation
The dimensional formula for Planck's constant \(h\) is obtained from \(E = h\nu\). \([h] = \dfrac{[E]}{[\nu]} = \dfrac{ML^2T^{-2}}{T^{-1}} = ML^2T^{-1}\) The dimensional formula for stopping potential \(V_0\) is obtained from \(eV_0 = E\).…
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