Recently Active Physics Questions

1....UNIFORM ROD OF LENGTH L AND MASS M..IT IS FREE TO ROTATE IN A HORIZONTAL PLANE ABOUT A VERTICAL AXIS THROUGH ITS ONE END..IN EQUILIBRIUM IT IS PARALLEL TO WALL.. (A)WHAT IS THE PERIOD OF SMALL OSCILLATION THAT RESULT WHE ...

SINGLE CHOICE 1. A conducting rod is rotated in uniform magnetic force field (B) with constant velocity (V). Thep.d. is developed between ends of rod when a) V||l b) V||B c) l||B d) None 2. Inbinary system 111 represents— ...

3 inf. planes(A,B,C) have uniform surface charge distribution σ on its surface.All charges are fixed.On each of 3 inf. planes,parallel tp YZ plane placed at x=-1,x=0,x=a.Find potential diff b/w A and C ...

An ideal gas whose adiabatic exponent equals γ is expanded so that amount of heat transferred to gas equals derease in internal energy.Find eqn of process ...

*Image* ...

Q1 Keplers laws dont always hold true for sattelite motion .Why ? a)Interactions between planets and the sun are diff fro mthose b/w the planets and the satellites b)His laws were for elliptical orbits and satellite motion ma ...

hello guys i am going to finish my portion very late......say march 20 .......abd i have yesy series of bt and fiitjee(corres) and wont have time to do all .....so shall i do only BT STS and some of f fiitjee aits ......as bt ...

MULTI ANSWER CORRECT *Image* ...

Q1) Figure shows a weigh bridge, with a beaker P with water on one pan and a balancing weight R on the other. A solid ball Q is hanging with a thread outside water. It has volume 40cm3 and weighs 80gms. If this ball is to be ...

1) A:beta particles emmited from radioactive nuclei has a continuous energy ranging from zero to a certain amx value R:in beta decay,a aneutron si converted into a proton,an electron and an antineutrino.The total energy emmit ...

A solid sphere of mass m rolls down a inclined plane of height h . find the rotational kinetic energy of sphere ??? plzz m weak at this topixc so plzzz post full solution?? ...

*Image* ...

A:Water is filled up in hollow cylinderical container of conducting bases and adiabatic curved surface and kept vertical in an isolated system.If temp of cylinder is decreased slowly from the bottom.The ince formation will st ...

*Image* ans is d ...

Photoelectric Effect/ Objective I:- Q.2) Two Photons having a) equal wavelengths have equal linear momenta b) equal energies have equal linear momenta c) equal frequencies have equal linear momenta d) equal linear momenta hav ...

is the 180 - 190 appx score in fiitjee test XI (yesterdays one) ............to clear jee appx.....and if some of u guys cud tell ur marks expected? ...

Two charges +q1 and and -q2 are placed at A and B respectively.A line of force emanate from +q1 at an angle α with AB. At what angle it will terminate at -q2? *Image* (a)sin-1[√(q1/q2)sin α/2] (b)2sin-1[√(q1/q2)sin α/2 ...

Pragraph : A hydrogen octum in third excited state makes a transtion to first excited state and emit photon. This emitted photon is absorbed by He+ ion which was already in seventh excited state. After absorption of photon He ...

A SOLID BODY STARTS ROTATING ABOUT A STATIONARY AXIS WITH AN ANGULAR ACC. 2*10-2T HERE,T ISD IN SECONDS.HOW SOON AFTER BEGINNING OF ROTATION WILL TOTAL ACC. VECTOR MAKE AN ANGLE OF 60° WITH VELOCIRTYT VECTOR? PLZ SOLVE COMPL ...

If a body with cavities floats half submerged in liquid of density 900 kg/m3. Then choose the incorrect statement. The average density of body is 450 kg/m^3 the density of material of the body may be greater than 900 kg/m^3 t ...

*Image* ...

1..electric lines of force can never be closed curves 2..electric line of force are path followed by a unit positive charge in an elecric field ...

Statement 1-the electric field inside a conducting shell is 0. Statement 2-no electric line of force can pass through 2 pts having same potential. A)1 is true,2 is true,2 is correct explanation of 1. B)1 is true,2 is true,2 i ...

A charge Q is placed at a distance of r from the center of a neutral solid spherical conductor as shown. Find the potential at B due to induced charges present on surface of solid sphere [A is centre of the sphere] *Image* ...

1) A flat square sheet of charge of side 50 cm carries a uniform surface charge density. An electron 0.5 cm from a point near the centre of the sheet experiences a force of 1.8 X 10 - 12 N, directed away from the sheet. Deter ...

If the potential difference decreases by a factor of n after every ladder then the ratio of R1/R2 is *Image* ...

*Image* Q3. A man is running on horizontal road with speed 2km/hr, he finds that rain is falling at θ = tan-1(1/2) with vertical. If he starts running in opposite direction with speed 4km/hr, then the rain will appear to fal ...

plz provide me a sert of readings in which u get balanicing length 45cm to 55 cm.....plz it is from cbse practicals............n i need it urgent i have practicals tomorrow..........thanx ...

1 metre long tube, closed at both ends, is lying horizontally. A mercury column of length 0.1 m is filled in its middle and in the rest two parts air is filled at atmospheric pressure. What will be the displacement of the mer ...

*Image* ...