# Recently Active Physics Questions

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replied2014-04-12 07:16:54
• Four point charges each of +q are rigidly fixed at the four corners of a square planar soap film of side 'a'.The surface tension of the soap film is T.The system of charges and the planar film are in equilibrium and a=k[q2/T] ...
replied2014-04-12 07:03:08
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replied2014-04-12 06:35:39
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replied2014-04-10 01:30:13
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replied2014-04-09 07:28:31
• The volume of a cube in m^3 is equal to the surface area of it in m^2.The volume of the cube is; a) 64m^3 b)216m^3 c)512m^3 d)196m^3 ...
replied2014-04-06 01:16:01
• Assertion : If a gas container is placed in a moving train , the temperature of the gas will increase. Reason : Kinetic energy of a gas molecule will increase ...
replied2014-04-02 23:15:16
• Two thermally insulated vessels 1 and 2 are fiiled with air at temperature (T1,T2),volumes (V1,V2) and pressure(P1,P2) respectively.If the valve joining the two vessels is opened , the temperature inside the vessel at equilib ...
• Two seconds after projection a projectile is travelling in a direction inclined at 30Â° to the horizontal.After one more second it is travelling horizontally.Determine the magnitude and direction of its velocity. ...
replied2014-03-28 05:18:49
• Water is to be pumped to fill a tank of volume 30 kL at a height of 40m from the ground in 15 mins by a pump on the ground floor.What is the electric power consumed by the water pump?Efficiency of pump=30%.. Density of water= ...
replied2014-03-28 01:18:15
• *Image* How to do di type of sums? ...
replied2014-03-27 21:15:31
• At time t=0 string A is cut, then what will be the maximum compression in the spring if spring constant is K.(Assume surfaces are smooth and initially spring was at its natural length) *Image* ...
replied2014-03-27 02:37:10
• What is the capacitance of a capacitor having plates of area A1 & A2 at a distance d? Please post explanation as well. ...
replied2014-03-27 00:47:21
• Mass of each block is 1 Kg. Find the minimum value of F so that sliding occurs at both the surfaces. *Image* ...
replied2014-03-27 00:39:09
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replied2014-03-27 00:02:40
• a> a fish at a depth d below the water sees a bird flying at a height h above the ground at an apparent distance......??? b> a double convex lens , made of a material of refractive index Î¼ is placed inside two liquids ...
replied2014-03-26 00:21:37
• The moment of inertia of semicircular ring about its centre is a) MR2 b) *Image* c) *Image* d) None of these ...
0·0· #Physics
• *Image* I have a lenghty solution,but if anyone can give a shortcut method for this? ...
replied2014-03-22 00:04:07
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replied2014-03-20 11:09:18
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replied2014-03-20 11:00:26
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replied2014-03-20 04:03:05
• 1)Mark the truth: a.Earth is revolving around the Sun. b.Sun is revolving around the Earth. c.Depends on on the Frame of reference we are seeing the bodies from. d.All the above statements are wrong. Your Answer a Correct Ans ...
replied2014-03-18 04:05:54
• 10)A galvanometer can be converted into an ammeter by connecting a high resistance in series connecting a low resistance in parallel connecting a low resistance in series \connecting a high resistance in parallel Your Answer ...
replied2014-03-16 10:26:24
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replied2014-03-15 09:26:45
• I'm stuck up with another question. Which part of the electromagnetic spectrum is used for : 1) Crystallography 2) Satellite communication In each case , mention the reason for using the particular electromagnetic rays select ...
replied2014-03-14 21:41:49
• Guys,I need some help regarding a question. Two ice cubes get stuck to each other when pressed together. Why? Can anyone answer this question for me? It's a bit urgent as my exam is on Tuesday. ...
replied2014-03-14 21:35:45
• When a body is dropped, it falls with a speed proportional to its weight. Is it: (1) Always true (2) True only if objects fall in a vacuum (3) True only if objects fall through air (4) Never true ...
replied2014-03-14 02:50:10
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replied2014-03-13 18:01:31
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replied2014-03-13 05:07:42
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replied2014-03-12 08:58:54