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A car is moving along a straight horizontal road at a speed of 20 meters per second.
The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds.
The mass of the car is:
Ans - 2500 Kilograms
One mole of an ideal gas at 0°C is compressed adiabatically reversibly to a pressure of 20 times its initial pressure. Evaluate the final temperature.(γ=1.4)
A light is evaluated by a rotating Nicol showed no variation of intensity. Determine the state of polarization?
8. System is shown in the figure. Assume that cylinder remain is contact with the two wedges. Find the speed of cylinder at the given instant cylinder
Superposition principle The general idea is that, while a number of influences are working on a system, the total influence on that system is just the sum of the individual in
define rigidity modulus and mention its units.
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.
MOTION EXAM WITH ANSWERS
Fig- detremines a square loop Made from a uniform wire. Determine the magnetic field at the centre of the square if a battery is connected among the points A and C.
If either screen or source or both are at preset distance from the diffracting device (obstacle or aperture), the diffraction is known as Fresnel type.
(1) CAPACITANCE: The value of capacitance depends upon the area of conducting plates, thickness of dielectric material and its permittivity. The frequency of operation
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