Explanation
1 Faraday = 96500 coulomb.
1 fermi = 10-15 metre.
Impulse = Force × time = (kg–m/s2) × s = kg-m/s
Mean time period T = 2.00sec
& Mean absolute error = T = 0.05 sec
To express maximum estimate of error, the time period
should be written as (2.00 ± 0. 05) sec
Since percentage increase in length = 2%
Here, percentage increase in area of square sheet = 2 × 2% = 4%
Given, L = 2.331 cm
2.33 (correct upto two decimal places)
and B = 2.1 cm = 2.10 cm
:.L + B = 2.33 + 2.10 = 4.43 cm = 4.4cm
Since minimum significant figure is 2.
The number of significant figures in all of the given number is 4.
Calorie is the unit of heat i.e., energy.
So dimensions of energy = ML2T–2
[h] = [Angular momentum] = [ML2T–1]
Energy = Work done [Dimensionally]
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