Recently Active Physics Questions

Q. Is a slow process always isothermal ? ...

Q. A rigid container of negligible heat capacity contains one mole of ideal gas. The temperature of the gas increases by 1 C if 3.0 cal of heat is added to it. The gas may be— a.Argon b. Helium c.nitrogen d Oxygen ...

*Image* find the aswers.. reat the questions as 1,2,3 respectively.. ...

This is a tricky ques found in most books.But i enjoyed solvin it so here it is. Two trains each having a speed of 30km/hr are heading towards each other on the same straight track.A bird that can fly at 60km/hr flies off one ...

Q. When we heat an object, it expands. Is work done by the object in the process ? Is heat given to the object equal to the increase in its internal energy ? ...

Take a square of side \ell , and remove the "middle'' square (1/9 of the area). Then remove the "middle'' square from each of the remaining eight squares, and so on, forever. Let the final object have mass m . Find the moment ...

what is the energy *Image* stored in the capacitor between the terminals a and b of the network shown in the figure ...

chalte cahlte ye sawal(s) bhi dekh lo yaar[1] 1) in case of motion in a straight line : a)distance is equal to displacement b)distance is greater than displacement c)distance is less than displacement d)none Subjective type: ...

Q.The outer surface of a cylinder containing a gas is rubbed vigorously by polishing a machine. The cylinder and its gas become warm. Is the energy transferred to the gas heat or work ? ...

Q. When a tyre bursts, the air coming out is cooler that the surrounding air. Explain. ...

Q. When an object cooled down, heat is withdrawn from it. Does the entropy of the object decrease in the process ? If yes, is it a violation of the 2nd law of thermodynamics stated in terms of increase in entropy ? ...

A D.C. Pandey Question.. *Image* ...

there a 2 inductors in parallel L1 and L2 and M12 is the mutial inductance . Find equivalent inductance... ...

*Image* a gud one try ...

try Q28 *Image* ans B ...

1. Frictionless support -------> the reactions act normal to the surface at the point of contact as shown *Image* 2. Roller and Knife edge support -------> the rollr and knife edge restricts the motion normal to the sur ...

I am giving my class 12 boards right now. initially in class 11 I had started preparing for JEE but my progress was slow . Until the beginnign of class 12 I had only reached upto thermodynamics. So I decided to prepare for bo ...

how do we convert a v/p curve of an ideal gas 2 a p/v curve. is rotation of mirror image of the curve the correct way??? ...

*Image* maine to padha tha Wisothermal is gr8est of all ...

DERIVE/FIND the MOI of following, (pl. dont giv direct formula) rectangle, AXIS : paasing thru center,in da plane of paper and parallel to one of the sides.... Cuboid, AXIS : diagonal ...

*Image* what is the charge AND POTENTIAL DIFFERENCE across all the capacitors , each of capacitance C ? ...

*Image* Ans B = 2p ...

The rod given in setup in fig1 is displaced slightly as shown in fig 2 find the time after which it will return to position in fig2 *Image* fig 1 _________________________________________________ *Image* fig 2 Take spring con ...

The amplitude of two waves are in ratio 5 : 2. If all other conditions for the two waves are same, then what is the ratio of their energy densities? ...

wid itz engine delievering max (and constant ) power, a sports car accelerates from 0 to 60 mph in 9 seconds. how long did it take 2 reach 20 mph?? a) 4.5s b) 1s c) 3s d) 6s ...

A block of mas m is held by the hand over a spring (of spring constant k) which is kept on a table verticaly so that the block just touchesthe end of the spring. Now the block is let go. the vlock compresses the spring and co ...

Can anyone give me link for fundamentals of physics extended 8th edition... Its urgent.. I tried very much and i can get only 8 chaps of it.... ...

1] caculate the least amount of work that must be done to freeze one gram of water at 0 degrees by a refrigerator. temperature of surroundings is 27 degrees. how much heat is passed to surroundings in this process? latent hea ...

a line charge λ is uniformly onto thew rim of a wheel of mass M & radius R. The wheel has light non- conducting spokes & is free to rotate without friction about its axis. A uni form magnetuc field exists over a circular reg ...

Q1. The electric field and electric potential at a point are E and V respectively. (a) If E=0, V must be 0 (b) If V=0, E must be 0 (c) If E≠0, V cannot be zero (d) If V≠0, E cannot be zero. Q2. The electric potential decr ...