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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.
compotion of two simple harmonic motion at straight line
Cathode rays have: (1)Mass only (2)Charge only (3)No mass and charge (4)Mass and charge both Ans:(4)Mass and charge both
Ehrenfest paradox (Ehernfest, 1909) The special relativistic "paradox" including a quickly rotating disc. As any radial segment of the disc is perpendicular to the direction o
contruction
Sol: The incident angle is 45 because the angle of reflection and angle of incident is equal.
how Michelson interferometer can be used to measure the wavelength of sodium light.
what is electric field
CAPACITOR MEASUREMENTS : Many modern digital multimeters incorporate a capacitance measuring facility although this may be limited to just one or two ranges. The diagram below
An α particle is a positively charged particle. Rutherford observed the behaviour of these particles when they approach the interior of the atoms as shown in fig. Rutherford ob
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