Recently Active Physics Questions

dis is a gud one for juniors (11th)....while i am sure that dos in 12 must have done problems lyk dese...open for all (11th and 12th) theres a rough inclined plane at an inclination of \alpha and a solid disc of radius R and ...

a uniform fine chain of length l is suspended with lower end just touching a horizontal table.find the pressure on the table wen a length x haS Reached d table 1 mgx 2 2mgx' 3 3mgx 4 mgx/2 i m getting 3mgx sum1 plzz check ...

a block a of mass 2 kg rests on a rough horizontal plank ,the coefficient of friction between planck n block =0.2 if planck is puled horizontally with a constant acceleration of 3.96 m/s2 ,the distance moved in metre by block ...

fine particles of a substance are to be stored in a heap on ahorizontly circular plate of radius a if the coefficient of static friction bw particles is k the maximum possible height is A ak B ak/2 C a/k d ak2 ...

a bicycle is in motion .when it is not pedaled the force of friction exerted by ground on the two wheels is such that it acts a)in the backward direction on the front wheel and in the forward direction on the rear wheel b)in ...

*Image* a track consists of two circular parts ABC and CDE of equal radii 100m.a cycle weighing 100 kg together with rider travels at a constant speed of 18km/h on track.what shud be the minimum friction coefficient b/w road ...

A PARTICLE HAS MOVE WITH A CONSTANT SPEED ON A OVERBRIDGE OF RADIUS R AND LENGTH L.WHAT MAXIMUM UNIFORM SPEED CAN IT MAINTAIN IF IT DOES NOT LOSE CONTACT ANYWHERE? ...

an infinitely long cylindrical surface of circular cross section is uniformly charged lenghtwise with the surface density σ=σocosφ where φ is polar angle of the cylindrical coordinate system whose z axis coincides with th ...

A BOX IS PUSHED THRU 4m ACROSS A FLOOR OFFERING 100N RESISTANCE .HOW MUCH WORK IS DONE BY RESISTING FORCE? ...

TWO CYLINDERS OF EQUAL CROSS-SECTIONAL AREA A CONTAIN WATER UPTO HEIGHTS h1 AND h2.THE VESSELS ARE INTERCONNECTED SO THAT THE LEVEL IN THEM BECOME EQUAL.CALCULATE THE WORK DONE BY GRAVITY IN THE PROCESS.(DENSITY OF WATER=p) ...

a parrot is sitting on the floor of a closed glass cage which is in a boys hand .if the parrot starts flying with constant speed ,the boy ll feel the weight of the cage a)unchanged b)reduced c)increased d)nothing can be said ...

if a rigid body is rotating about an axis passing through the point 2i-j-k and parllel to i-2j+2k with an angular velocity of 3 radians/sec then find the velocity of the point of rigid body whose position vector is 2i+3j-4k a ...

q1 two particles describe the same circle of radius a in the same sense with the same speed v .wat sr der relative angular velocity .is it 0 or v/a q2if the acceleration of a particle is a function of distance as a =f(x) a)ve ...

a particle of mass m is moving under variable force F IFmagnitude of F is constant the the possible path of particle can never be a)rectilinear b)circle c)ellipse d)parabola ...

*Image* the direction of current induced in the circular loop if an electron moves in the indicated direction is 1. clockwise 2. antticlockwise 3. no current is induced 4. direction of current varies with time ...

1. *Image* A circular coil carries current i in direction shown.ABCDECFA is a fig. of 8 lying on a plane which is inclined @ 45deg. to the plane of circular coil.then modulus of \oint_{abcdecfa}^{}{}B.dl =? a.0 b.2 \mu i c. \ ...

Pls give the solution of this sum. Three particles, each having a charge of 10μC are placed at the vertices of an equilateral triangle of side 10cm.Find the work done by a person in pulling them apart to infinite separation? ...

an insect crawls from one corner of cubical room to another diagonally opposite corner .wat is minimum distance travelled by insect? a)89.44ft b)95.44ft c)40ft d)80 ft ans is a plzz explain ...

LET THE MASS OF EACH KID BE 15 KG,DISTANCE BETWEEN THE POINTS OF ROD WHERE THE TWO KIDS HOLD IT BE 3.0 m AND THE ROD ROTATES AT THE RATE OF 20 REVOLUTIONS PER MINUTE.FIND THE FORCE OF FRICTION EXERTED ON THE ROD BY ONE OF KID ...

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A stone of mass 100g is suspended from the end of a weightless string of length 1 m & is allowed to swing in a vertical plane.The speed of the mass is 2m/sec.find the speed of the stone at its lowest point...when the string m ...

When a very fat person tries to touch his toes,keeping the legs straight,he generally falls.Explain. ...

A parallel plate condenser of capacity 2 micro F is charged to a pd of 100 V. It is then connected to another uncharged condenser of capacity of 3 micro F. Calc energy b4 & after they are connected. ...

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I would like to have everybody's idea about the following problem: suppose we keep two circuits with one loop each(radii x,y) side by side.(resistance r1,r2,, emf e1,e2). not neglecting mutual and self inductance, give a ...

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2 beams one of electrons and the other of protons would 1. attract each other 2. repel each other 3. cant say 4. dunno ...

*Image* d equilanet capacity of d infinite net work shown in d fig is each capacity is 1nu F hey frnds i dont know which is in series with what capacitance & which is in parallel with can any 1 give a detailed explanation plz ...

how much distance, a mass m kept on the surface of a sphere ,covers before it flies off th sphere.. ...

pls i dint understand one thing.. wats the difference between echo and reverberation???? is it as simple as the distance of the reflecting surface. i hav heard that the distance for reverbertion is 17m or less and for echo it ...