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Four charges are arranged at the corners of a square as shown in the figure. The direction of electric field at the centre of the square is along ...

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A nucleus of mass number 220 decays by alpha decay. The energy released in the reaction is 5 MeV. The kinetic energy of alpha particle will be ...

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A rocket is moving in a gravity free space with a constant acceleration of 2 m/s along +x direction. The length of a chamber inside the rocket is 4 m. A ball is thrown from the left end of the ...

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Airplane A and B are flying with constant velocity in the same vertical plane at angles 30° and 60° with respect to the horizontal respectively as shown in the figure. The speed of A is 100(3)^(1/2) m/s. At time t ...

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Two identical discs of the same radius R are rotating about their axes in opposite directions with the same constant angular speed. The discs are in the same horizontal plane. At time t = 0, the points P and Q ...

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When the inputs of a two input logic gate are 0 and 0, the output is 1. When the input are 1 and 0, the output is zero. The type of logic gate is ...

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