Recently Active Physics Questions

Find ratio of magnitude of angular momentum of rolling disc about origin to point P on disc *Image* ...

which wont give dispersion??????? plz give proper reason also...... *Image* ...

A man pushes a cylinder of mass m1 with the help of a plank m2 as shown in the figure. there is no slipping at any contact. *Image* the horizontal component of the force applied by the man is F. a ) Find the acceleration of p ...

In searle's apparatus, diameter of the wire was measured 0.05 cm by screw gauge of least count 0.0001 cm. length of wire was measured 110 cm by meter scale of least count .1 cm. An external load of 50N was applied. The extens ...

A nucleus with mass no. 220 initially at rest emits an alpha particle.If Q value of reaction =5.5MeV ,then calculate KE of alpha particle ...

In case of a ray travelling frm MEdium a to medium b WaT IS THE NECESSARY COndition/relationg between the refractive indices of a and b SO AS TO BRING ABT A PHASE CHAGE OF Î in the traveling wave.....?????????? ...

stat1;if the atmospheree air suddenly condenses n form a thin layer on the surface of earththe duration of day ll increase stat2;moment of inertia of earth ll increase n thus angular speed ll decrease ...

ARRE......... MUJHE TO QUESTION HI SAMAJH NAHI AAYA [2] *Image* ...

in a gravity free space a man of mass M standing at a height h above the floor throws a ball of mass m straight down witb a speed u. when the ball reaches the floor , the distance of the man above the floor will be- a)h(1+m/M ...

There are infinite equipotential lines all parallel to the line AB in a right angled triangular region ABC as shown.All points on the vertical line have the same potential and proportional to the length of the line. *Image* ( ...

A block of mass 1kg is pushed against a rough vertical wall with a force of 20N, coefficient of static friction being 0.25. Another horizontal force of 10N is applied on the block in a direction parallel to the wall. Will the ...

*Image* P,Q,R & S lie at the edges of a SQUARE OF side A..8 WIRES OF SAME resisstance per unit length μ are connected as shown...A time varying magnetic field(inside the plane of the page) B=B0t exists in space.Then current ...

jee 1989 An electric is dipole placed in uniform electric field. what is the minimum time taken for the charge to come from extream position to mean position? ...

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wat is the difference between decelaration and retardation? or, are they the same thing? ...

a syringe of diameter D=8mm and having a nozzle of diameter d=2 mm is placed horizontally at a height of 1.25m as shown in the figure. An incompressible and non viscous liquid is filled in syringe and the piston is moved at s ...

Two point masses m1 and m2 are coupled by a spring of spring constant k and uncompressed length L0. The spring is fully compressed and a thread ties the masses together with negligible speration between them. the tied assembl ...

during the melting of a slab of ice at 273 K at atmospheric pressure: what will be its effect on the internal energy of ice - water system ...

Point charges q and -q are kept at the alternate corners of a cube of side a. Write the expression for the work done in removing all the charges far away from each other *Image* ...

disc rolls clockwise with angular speed w suddenly contacts a plane inclined at an angle a The value of a which could bring the disc immideately to rest on impact is Please solve the ques ...

the frictional force on the point of contact of a disc rolling perfectly down an inclined plane is zero Tell whether the statement is correct or wrong ...

A non conducting disc of radius a and uniform positive surface charge density σ is placed on the ground with its axis vertical. A particle of mass m and +ve charge q is dropped along the axis of the disc from a height H with ...

In a vernier calliper n divisions on the main scale correspond to n+1 no the vernier scale. Each division of the main scale is of a unit. What is the least count? ...

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A 10 cm column of air is trapped by a 8 cm column of Hg in a capillary tube.....the tube is horizontallly fixed as shown in the figure at 1 atm pressure. Calculate the length of air column when the tube is fixed: *Image* (a) ...

a rod of weight, w is supportd by two parallel knife edges A and B and is in equilibrium in a horizontal position. the knives are at a distance of d from each other. the centre of mass of the rod is at a distance x from A. th ...

a hole is dug along the centre of the earth along the diameter, and a body of mass m is dropped in the tunnel, calculate the velocity of body at the centre of the earth , given that gravitaional potential at the centre of the ...

assertion n reason statement 1 ;acceleration due to gravity gos on decreasing as we goes frm equqtor to pole statement 2:a part of weight is used to provide the centripetal force for rotating the body abt n-s axis of earth ...

consider a body projected in horizontal direction at certain heightwith velocity v 1trajectories possiblity a)circular p)total mech energy<0 b)ellipse (not a circle) q)v=v0 (c)parabola r)v<vo (d)hyperbola s) v>ve t)v ...

HAD SOLVED THIS 1 IN SUM OTHER FORUM...... In a vertical U-tube containing a liquid, the two arms are maintained at different temperatures t1 and t2. The liquid columns in two arms have heights l1 and l2 respectively. The coe ...