In an experiment to determine the resistance of a given wire using Ohm's law, the voltmeter and ammeter readings are noted as 10 V and 5 A , respectively. The least counts of voltmeter and ammeter are 500 mV and 200 mA , respectively. The estimated error in the resistance measurement is $\_\_\_\_$ $\Omega$
In a Vernier calipers, when both jaws touch each other, zero of the Vernier scale is shifted to the right of zero of the main scale and $7^{\text {th }}$ Vernier division coincides with a main scale reading. If the value of 1 main scale division is 1 mm and there are 10 Vernier scale divisions, then the Vernier caliper has
$L, C$ and $R$ represents physical quantities inductance, capacitance and resistance respectively. The dimensional formula $\mathrm{ML}^2 \mathrm{~T}^{-4} \mathrm{~A}^{-2}$ corresponds to $\_\_\_\_$ .
$$ \text { Match the LIST-I with LIST-II } $$
| List - I |
List - II |
||
|---|---|---|---|
| A. | Planck's constant | I. | $$ \mathrm{ML}^2 \mathrm{~T}^{-2} $$ |
| B. | Stopping potential | II. | $$ \mathrm{T}^{-1} $$ |
| C. | Work function | III. | $$ \mathrm{ML}^2 \mathrm{~T}^{-1} $$ |
| D. | Threshold frequency | IV. | $$ \mathrm{ML}^2 \mathrm{~T}^{-3} \mathrm{~A}^{-1} $$ |
Choose the correct answer from the options given below:
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