Question
A 10 μF capacitor is charged to 50 V and then
connected across an uncharged 20 μF capacitor. What is the final potential difference across both capacitors?Solution
A body starts from rest and accelerates uniformly. After t seconds, it covers a distance S. What is the ratio of the distance covered in the first half ...
A tuning fork of frequency 440 Hz resonates with a pipe closed at one end, vibrating in its second overtone . If the speed of sound in air is 330 m/s, w...
Half-life of a radioactive substance is 10 days. The time after which only 1/16th of it remains is:
Which law states that internal energy is a function of state and the increase in internal energy equals the sum of heat supplied to the system and work ...
Hyperrnetropia or longsight can be corrected by using :
What is the angle between centripetal acceleration and tangential acceleration?
In Newton’s law of cooling, the rate of temperature fall is proportional to:
A current element is placed at origin. At point P(1 mm,1 mm), the magnetic field due to this element is:
What is the speed of sound in air at room temperature (approx)? Â
A body of mass 2 kg is moving with velocity 3 m/s. What is its kinetic energy? Â
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