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Can an object have zero velocity and nonzero acceleration at the same time? Give examples. ...
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A man stands on the top of a high building with a source of sound with frequency 1000 Hz.He accidently drops the device.Find the frequency of the sound heard by the man 4 seconds after he drops the device?(Speed of sound=320 ...
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Find the no of arrangements of the word 'Delhi' if e always comes before i. ...
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A spherical ball of mass m and radius r rolls without slipping on a rough concave surface or large radius R. It makes small oscillations about the lowest point. Find the time period. (H.C. Verma Part-1 S.H.M.-Q. No:39) ...
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What happens when a light bulb burns out? ...
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Pressure at a point= hdg where h is height and d is density.Now look at the figure given below. *Image* Here, the pressure is more at point A than the pressure at point B as height of A is more than that of B. So, fluid shoul ...
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In Y.D.S.E set up the separation between the slits is 10l. Then the maximum number of interference maxima obtained on the screen is ...
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We know friction occurs due to irregularities at molecular level,what is the origin of normal reaction between the surfaces? ...
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A body floats in complete immersed condition in water as shown as in figure.As the whole system is allowed to slide down freely along the inclined surface,the magnitude of buoyant force *Image* (a)remains unchanged (b)increas ...
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A rod of mass 0.02 Kg and length 2m is sliding down on an conducting rails inclined at an angle 30° by the action of a variable force which is acting on the rod down the inclined. If rod was initially at rest, i=0, di/dt = 5 ...