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A front is the boundary between two air masses with different temperature, humidity, and density characteristics. It often leads to weather changes.
Which of the following optical phenomena CANNOT convert unpolarised light to plane polarised light?
A sudden drop in barometric pressure indicates which of the following?
If the vector sum of torques acting on a system is zero, then the object is in:
The speed of a fast moving electron, having total energy of 2 MeV, is nearly:
What is the work done when a force of 10 N moves an object by 5 m in the direction of the force?
Two amplifiers are connected one after the other in series (cascaded). The first amplifier has a voltage gain of 12 and the second has a voltage gain o...
Smog is a combination of –
A 220 V, 50 Hz AC supply is connected across a coil of resistance 10 Ω and inductance 0.1 H. Calculate the power consumed in the coil.
Energy that is produced commercially from coal is called –
Which of the following is a reason for excessive current in electrical circuits?
I. Direct touching of wires
II. Connection of many d...
