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How can light be defined in simplest form?
The common explanation of 'light' (visible) is electromagnetic radiation visible to the human eye.
It is only a little part of what is called as the 'electromagnetic spectrum' - which is the range of wavelengths of all possible electromagnetic radiation.
Water accelerated by a nozzle to 20 m/s strikes the vertical back surface of a cart moving horizontally at a constant velocity of 5 m/s in the flow direction. The mass flow rate of
2 upright plane mirrors are 4 meters apart and facing each other. A man stands 1 meter in front of them. Determine the distance between the second images in the mirror
Can you put any amount of light into a fiber optic? It is one of the standard fallacies of the industry. The system required to put a sizeable amount of light in a fiber optic
Charging: During charging the device is linked across a source of D.C. supply having a voltage of about 3 volts. When the circuit is switched on the current flows inside the cell
Can two candles be taken as coherent sources? Explain how.
When a metal becomes a superconductor, there is a tremendous decrease in it's: a) Total volume b) Electrical resistance c) Length d) Density Ans: While a
A pendulum is timed, first for 20 swings and then for 50 swings Time for 20 swings= 17.4s Time for 50 swings= 43.2s Calculate the average time per swing in each case.
A galaxy in the constellation UrsaMajor is receding from the earth at 15,000 km/s. If one of the characteristic wavelengths of the light the galaxy emits is 550 nm, what is the cor
A 50 newton light fixture is supported by two guy wires as shown. Determine the tension in each wire
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