Recently Active Physics Questions

Q. Prove that internal energy of one mole of a Van der Waals gas is given by U = CvT - a/Vm ...

A u tube of areas of crossecetion fo left and rite limbs as 5cm^2 and 10 cm^2 are filled with liq of densiites ρ and 0.8ρ.100 cc of liquid of density 3ρ/4 is poured into a)rite limb b)left limb Find deprssion of liquid sur ...

This is a very old qsn. The qsn goes like this, that u have a mass m performing SHM, with a spring of spring const. k, and then when the mass reaches it's mean position, another mass m drops on it - so what will be the new am ...

Q1 Plane polarized light is passed through polaroid.on viewing through polaroid,it is given one complete rotation about direction of light.WHat do we observe now ?? Q2 what is coincidence logic ????draw the circuit in example ...

Multi-correct. Q) In a prism of angle A and refractive index \mu , the maximum deviation occurs when - a) Angle of incidence is 90 deg. b) Angle of incidence is sin^{-1}\left(\left\{\sqrt{\mu^2-1} \right\}sinA-cosA \right) c) ...

If two waves having amplitudes a and b make superposition the resultant amplitude A is given as A = 1 √(a^2 + b^2 + 2ab cosφ) where φ is phase constant. The intensity (I)2 is directly proportional to square of amplitude. ...

*Image* *Image* *Image* circled questions are doubts ticked answers are my answers circles options are fiitjee answers ...

HCV pg 35 q 33 A uniform tube closed at one end,ccontains at one end contains a pallet of mercury 10cm long.When the tube is kept verticallywith the closed end upward,length of the air colummn trapped is 20 cm. Find the lengt ...

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relative density of a material is found by ratio of weight in air and decrease in weight in water. If weight of a body in air and water are measured as W in air = (10.0+-0.4)g and W in water = (5.0 +- 0.1)g, then percentage e ...

In case of standing waves in a string, energy of oscillations in nth overtone will be n2 times of that in first overtone. TRUE / FALSE ...

charged particle mass m ,charge q valocity v is projected radially in solenoid (radius R,turns per unit lentgh =n ,current =I). 1)Find time taken,angle subtended at centre of solenoid. 2)Find velocity of projection (tangentia ...

Charged particle mass m charge q is porjected perpendicular to magnetic field .Find angular deflection,sideways deflection and impulse of magnetic forces if b<mv/Bq *Image* ...

A solid conucting sphere havign charge Q is surrounded by uncharged concentric cinducting hollow spherical shell.Let tghe potential diff b/w surface of solid sphere and that of the outer surface of hollow shell be V.If hte sh ...

a standing wave existsi n a string of length 150cm fixed at both ends.THe displacement amplitude of a point at a distance 10cm from one of the ends is 10√3 mm.The distance b.w two nearest points within the same loop having ...

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Two bodies of masses m1 and m2 and specific heat capacities s1 and s2 are connected by a rod of lenght L crossectional area A,thermal conductivty K and negligible heat capacity.The whole system is thermally insulated.At time ...

Q1 2 conducting spheres of radius r and 2r at a very large separation.Each sphere has acharge Q.These spheres are now connected with aconducting wire of resistance R.FInd current flowing in wire at t=2μs r=30cm,R=90 k Ω ,Q= ...

PLEASE HERE THE SONG" NEW DIVIDE " BY LINKIN PARK. IT'S AWESOME. DOWNLOAD IT FROM THE INTERNET AND JUST PLAY. U WOULD WANT TO HERE IT AGAIN AND AGAIN. ...

ncert class XII page 316....chapter 9 example 9.4 havin a doubt in this example.....when i solve it by differentiating th mirror equation wrt time....m getting an answer different from the achieved by the method shown here... ...

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Assuming 200 MeV of energy is released for fission of Uranium atom , find the number of fissions per second required to realease 10 kilowatt power. ...

A massless container containing some water is accelerating in the horizontal direction with accn a m/s2. The lid of the continer is hinged at 1 end, and is free at the other end. Find what minimum mass should be kept over the ...

din knw whether to put in mechanics or electricity and mag section *Image* ...

*Image* now 1) what is the significance of the minus sign before Blv ???? 2) what is the vector form of this formula.. like e.g. Fm = Bqvsin@ or q(v x B) 3) the book says E=0 if l or v is parallel to B if v is parallel E=0 I' ...

MY BOARDS STARTING TOMORROW, WHEN UR GUYS BOARD STARTIN'. LET EVERYONE KNOW..................... ...

question if the ring like mass m1 comes down a distance h what is the ratio of v1/v2 my method i solved this problem mainly on intitution like i drew a erpendicular and the length comes out to be h cos@ now i want to know the ...

In details of 10+2 field, do I fill the Month and Year of my 10th boards(March 2008)? School would obviously be the school I go to, and board CBSE... Subjectwise Marks of 10+2 = Marks of 10th board? ...

A thin horizontal uniform rod AB of mass m and length l can rotate freely about a vertical axis passing through its end A. At a certain moment the end B starts experiencing a constant force F which is always perpendicular to ...

An engineer works at a plant out of town. A car is sent for him from the plant everyday that arrives at the railway station at the same time as the train on which he comes. One day he arrives at the station one hour before an ...