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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.
APPLICATIONS OF NEWTON'S LAWS - II 1. As the body moves through the body it displaces the fluid. It has to exert a force on the fluid to push it out of the path. By the Newto
For silicon the forbidden gap is (A) 1.1ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For silicon the forbidden gap is 1.1ev.
working model
An isotope of iodine (Z = 53) is used to treat thyroid conditions. Its mass number is 131. How many neutrons are in its nucleus? 131 - 53 = 78 neutrons
Five coulombs of charge are placed on a thin-walled conducting shell. Once the charge has come to rest, the electric potential inside the hollow conducting shell is found to be:
Q. State any three uses of IR rays. (a) Infrared lamps are utilized in physiotherapy. (b) Infrared photographs are utilized in weather forecasting. (c) As infrared radia
candela; cd The basic SI unit of luminous intensity described as the luminous intensity in a given direction of a source which emits monochromatic photons of frequency 540 x 1
A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity
What are different pumping mechanisms in LASERS?
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