Recently Active Physics Questions

hey guys i am not getting the answer, plzz help *Image* a rod of length L is lying on a smooth roller of height `h` as shown. find the coefficient of friction between the lower end of the rod and ground if the minimum angle i ...

21. A parallel plate capacitor with air gap between its plates is charged using a battery and remains connected to the battery. Match the column I with column II. Column I Column II (a) Electric field intensity between the pl ...

How can v increase the work-function of Tungsten??? ...

an immersion heater , in a insulated vessel of negligible heat capacity brings 100 g of water to the boiling point from 16 degrees in 7 min. then find 1} power of heater 2}the water is replaced by 200 g alcohol, which is heat ...

A bullet loses 1/20 of its velocity in passing through a plank . what is the least number of planks which are required to stop the bullet. ...

A force F=5zi+xyj+x2zk where i,j,k are unit vectors along x,y,z a)is conservative b)is nonconservative c)is conservative along some paths d)may be conservative or non conservative depending on x,y,z ...

*Image* Which set of the quantities is remaining conserved during motion of the particle? (a) Angular velocity, total mechanical energy, magnitude of net force (b) Angular velocity (c) Angular momentum, mechanical energy (d) ...

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*Image* find acceleration of all blocks........ neglect friction.......... wedge is fixed ...

An inductor coil joined with a 6 V battery draws a steady current of 12 A. This coil is connected to a capacitor and an AC source of RMS voltage 6 V in series. If the current in the circuit is in phase with the emf, the rms c ...

*Image* 0.01 moles of an ideal diatomic gas is enclosed in an adiabatic cylinder of cross-sectional area A = 10 –4 m2. In the arrangement shown, a block of mass M = 0.8 kg is placed on a horizontal support, and another bloc ...

*Image* that capacitor and dielectric question... [7] ...

STATEMENT-1: When a Coolidge tube is operated for some time it becomes hot. STATEMENT-2: The electrons emitted by the filament of the Coolidge tube hit the target with a very high speed which then stopped by the target. (a) S ...

A rolling sphere is rolling without slipping on a surface and no force other than force applied by surface and weight is acting on it. Match the column I with column II. Column I Column II (a) Surface is horizontal (p) Transl ...

*Image* In figure,there are shown two similar,uniform,rigid rods A and B each of mass M and length L are placed in contact at their one ends,on a smooth horizontal table.A sharp impulse is applied at one end of the rod A as s ...

The velocity of the particle is 10 3 m/s.. 1. Find the verticle height h... 2. Maximum height attained by particle from O 3. distance PQ (NOTE: The particle is projected and hits the planes perpendicularly..) *Image* ...

Can somebody mathematically prove that at resonance, amplitude of the oscillating system becomes high? This might be simple but most of us only know the fact and don't have this proof. Try it.. ...

Dont know where I am wrong....... I solved this question by 2 diff methods and am getting answers diff.....plzz tel my mistake Q A sphere of 5 kg specific gravity 2 is completely submerged into water.Find radius of sphere met ...

Dont know where I am wrong....... I solved this question by 2 diff methods and am getting answers diff.....plzz tel my mistake Q A sphere of 5 kg specific gravity 2 is completely submerged into water.Find radius of sphere met ...

3 identical discs A,B,C rest on a smooth horz surface.Disc A is set into motion with speed u after which it experiences elastic collision simultaneously with B and C.Distace b/w centres of B and C prior to collision is n time ...

*Image* find equivalent capacitance....All are in μF ...

A ball falls vertically onto a floor, with momentum p, and then ball bounces repeatedly. The coefficient of restitution is e. The total momentum imparted by ball to the floor is A) p(1 + e) B) p/(1 - e) C) p(1 + 1/e) D) p{ (1 ...

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*Image* Consider a ball which is projected horizontally with speed u from the edge of a cliff of height H as shown in the Fig. (1). There is air resistance proportional to the velocity in both x and y direction i.e. the motio ...

STATEMENT:for an ideal fluid flowing thru a horizontal pipe of non uniform cross section,the pressure decreases with decrease in cross section i found this statement in an assertion reason qn and it is given that it is true,c ...

A conducting rod of length l is hinged at a point.It is free to rotate in a vertical plane.There exists a uniform mag. field B perpendicular to the plane.The rod is released from horizontal position.What is the potential diff ...

A massive wooden plate of unknown mass M remains in equilibrium in vacuum when n bullets per second are fired on it.The mass of each bullet is m (M>>m).Each bullet strikes the centre of the plate with speed v,coeff of r ...

*Image* sorrry 4 postin such a horrific image ....LOL...... ans = a ...

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