Subject: Physics, asked on 11/11/19

## A container contains two immiscible liquids of density ρ1ρ1 and ρ2(ρ2>ρ1)ρ2(ρ2>ρ1). A capillary of radius rr is inserted in the liquid so that its bottom reaches up to denser liquid. Denser liquid rises in capillary and attains height equal to hh which is also equal to column length of lighter liquid. Assuming zero contact angle find the surface tension of the heavier liquid.

Subject: Physics, asked on 18/5/19

## Solve this problem

Subject: Physics, asked on 23/5/14

## Two point charges q2 = 3 x 10-6C and q1 = 5 x 10-6 C are located at (3 ,5,1,) and (1,3,2) m . find F12and F21 using vector form of coulomb 's law . Also, find their magnitude.

Subject: Physics, asked on 30/3/18

## A point charge 17.7mC is located at the centre of the cube of side 0.03m. Find the electric flux through each face of the cube.ans=3.36x106 Nm2/C.No links pls

Subject: Physics, asked on 28/3/17

## a shunt resistance 1 ohm across a galvanometer of 120 ohm resistance. A current 5.5 ampere gives full scale deflection in the galvanometer. The current that will give full scale deflection in the absence of the shunt is nearly

Subject: Physics, asked on 18/12/17

## Two radioactive samples A and B have half life T1 and T2 respectively At t=0 the activity of B was twice activity of A Their activity will become equal after time

Subject: Physics, asked on 12/10/17

## A particle moving with velocity v having specific charge (q/m) enters a region of magnetic field B having d =  to the boundry of magnetic field. Find the angle $\theta$ in the diagram

Subject: Physics, asked on 29/1/17

## A capacitor of capacity 2 microfarad is charged to a potential difference of 12 volt. It is then connected across an inductor of inductance 0.6 mH. What is the current in the circuit at the time when the potential difference across the capacitor is 6v?

Subject: Physics, asked on 27/12/17

## A force F is applied along a rod of transverse section area A the normal stress to a section PQ inclined theta to a transverse section is ​Q10. A force F is applied along a rod of transverse section area A. The normal stress to a section PQ inclined $\mathrm{\theta }$ to transverse section is                     ​(1)                                               (2)          ​(3)                                           (4)

Subject: Physics, asked on 18/12/11

## ABC is an equilateral triangle of side 10m and D is the mid point of BC . Charges of +100 , -100 and +75 micro C are placed at B , C and D respectively . Find the force on +1 micro C charge placed at A.

Subject: Physics, asked on 8/12/19

## What will be the value of electric field at the centre of electric dipole? (a)Zero (b)Equal to the electric field due to one charge at centre (c)Twice the electric field due to one charge at centre (d)half  the value of electric field due to one charge at centre.

Subject: Physics, asked on 13/3/14

## a uniform ladder of length 3.25m and weighing 250N is placed against a smooth vertical wall with its lower end 1.25m from the wall. if coefficient of friction between the ladder and the floor is 0.3 , then , find the frictional force acting on the ladder at the point of contact between ladder and floor.ans: 52.1N????

Subject: Physics, asked on 5/5/13

## Four charges are placed on corners of a square ABCD, A = Q, B = -2Q, C = +2Q & D = -Q having side of 5cm. If Q is one microcoulomb, then electric field intensity at centre will be a) 1.02 x 107 N / C upwardsb) 2.04 x 107 N / C downwardsc) 2.04 x 107 N / C upwardsd) 1.02 x 107 N / C downwards

Subject: Physics, asked on 22/4/18

## Q. Electric field in fig is directed along + X direction and given by Ex = 5 A x+ 2 B where E is in NC-1 and x in meter , A and B are constants with dimensions . taking A = 10 N C-1 m-1 and B = 5 NC-1 , calculate (i) the electric flux through the cube (ii) net charge enclosed within the cube

Subject: Physics, asked on 6/5/12

## 2 charged metal spheres of radii R and 2R teemporarily placed in contact and then seperated.At the surface of each which sphere has the greater value of tha following:a.charge b.charge density c.potential d.electric field

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