# Recently Active Physics Questions

• a cylinder containing gas at 27o C is divided into two parts of equal volume each of 100cc and at equal pressure by a piston of cross section area 10.85cm2 . the gas in one part is raised in temperature to 100o C while the ot ...
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replied2013-05-06 09:43:33
• What is the difference between an organ and organelle ...
replied2013-05-01 04:08:26
• Capacitor C is charged to a potential V and the battery is disconnected. now if the plates are brought close slowly by some distance: a) some +ve work is done by external agent b) energy of capacitor will decrease c) energy o ...
replied2013-05-01 03:32:14
• If every action has its equal and opposite reaction, then why is the universe expanding? It is exerting force and expanding but an equal force should be acting on it to make contract. So it should not be expanding, isn't it? ...
replied2013-04-30 23:21:16
• A small block of mass m is placed on the top of a right triangular block of mass M, which in turn is placed on a horizontal surface. All the surfaces are frictionless. Angle of inclination is α. Height of the triangular bloc ...
replied2013-04-29 06:14:15
• *Image* The ring is rolling without slipping with a constant velocity "v", when a tangential force "F" is applied on it. What will be the net acceleration on the body.? ...
replied2013-04-29 04:54:37
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replied2013-04-25 21:38:28
• More than one option may be correct. *Image* ...
replied2013-04-25 12:05:37
• A ring is placed over a surface which is rough .The ring has a set of + charges and - charges on opposite sides,the ring also has 2 insulators attached to the ring on other opposite sides.Q:FIND the value of the friction for ...
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replied2013-04-24 08:28:50
• Does earth do any work while moving in its orbit? ...
replied2013-04-24 03:26:40
• The ratio of minimum kinetic energies of two projectiles of same mass is 4:1. The ratio of the maximum height attained by them is also 4:1. What is the ratio of their ranges? ...
replied2013-04-23 04:46:09
replied2013-04-23 01:43:24
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replied2013-04-23 00:36:20
• why is electricity produced when lightening occurs? ...
replied2013-04-22 13:59:18
• 11. A person blows into open-end of a long pipe. As a result, a high-pressure pulse of air travels down the pipe. When this pulse reaches the other end of the pipe, (A) a high-pressure pulse starts traveling up the pipe, if t ...
replied2013-04-22 10:44:05
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replied2013-04-22 07:29:07
• which book should i take elementary algebra by hall and knight or higher algebra by hall and knight i am class 11 student ...
• The area of the parallelogram represented by the vectors A=2i+3j and B=i+4j is? I'm getting the answer as 5 5 but the correct answer is 7.5 units. ...
replied2013-04-22 05:34:27
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replied2013-04-19 07:08:28
• why can't light escape from a blackhole ...
replied2013-04-19 05:51:27
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replied2013-04-18 11:47:17
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replied2013-04-17 00:53:07
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replied2013-04-17 00:50:32
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replied2013-04-16 10:16:28
• Switch is closed at t=0.Initially no current in inductor. Find out current in inductor as function of time *Image* ...
replied2013-04-16 02:43:40
• can alpha and beta decay occur in a same molecule(radioactive needless to say)? ...
replied2013-04-15 05:01:53
• A body with uniform acceleration covers 76 m in the 5th sec and 116 m in the 10th sec. Find the distance travelled in the 15th second.What is the distance travelled in next 5 seconds? ...
replied2013-04-14 18:39:59
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replied2013-04-14 09:11:04