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Physics

Which of the following is incorrect?

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The electron drift speed is small and stars of the electron is also small but still we obtain a large current in the conductor this is due to

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Which of the following is not true?

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In a particular system the units of length, mass and time are chosen to be 10 cm, 10 g, and 0.1 s respectively. The units of force in this system will be equal to ?

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Assertion: It is not possible to see a virtual image by eye. Reason: The rays that seem to emanate from a virtual image do not in fact emanates from the image.

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A fireman wants to slide down a rope.the ropee can bear a tensiomn of 80% of the weight of the man. With what minmuum acclearation shoud the foreman slide down?

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A force f = 3x+4 displaces an object of mass 10kg from x=0 to x=4m if the speed of the object at x=0 is 2m/sec it's speed at x=4m will be

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