Explain how do you find the refractive index of a liquid by using total internal reflection?
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we know the speed of light...... then what is the speed of darkness?????????????
A coil consisting of 200 turns of wire has its ends connected to a circuit such that the total resistance of the coil and the circuit is 2.0 ohm. There is no source of e.m.f. in the circuit. Each turn of the coil is a square of side 18 cm, and a uniform magnetic field directed perpendicular to the plane of the coil is turned on. If the field changes linearly from 0 to 0.5 T in 0.8 s, what is the magnitude of the current in the coil while the field is changing?
Why Speaker Output mentioned in WATTS
Why are prisms used in binoculars ?
According to coulombs law, if two charged particles are repelled with a given force at a distance d, by what multiple will the force decrease by if d is increased by 4times?
What makes the telegraph wires hum?
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what is relation between magnetic and electricity and why?
Explain about Bessemer?
Tell me what is pascal s principle?
What is Amphoteric ?
moment of inertia of an area is always least with respect to