A point light source of `100W` is placed at a distance x from the centre ofa hole ofradius R in a sheet as shown in figure, Find the power passing through the hole in sheet

Find the centre of mass of uniform thin sheet as shown in figure.

Find the centre of mass of uniform thin sheet as shown in figure.

A mono chromatic light source of wave length I is placed at a distance R from the mirror as shown and a spherical screen of radius R is at a distance R from the source as shown in the figure and point P is on the sphere nearest to the source.It R is two times the wave length (R=2l) then f'+(p)

A point mass m is released from rest at a distance of 3R from the centre of a thin-walled hollow sphere of radius R and mass M as shown. The hollow sphere is fixed in position and the only force on the point mass is the gravitational attraction of the hollow sphere. There is a very small hole in the hollow sphere through which the point mass falls as shown. The velocity of a point mass when it passes through point P at a distance R//2 from the centre of the sphere is

A point mass m is released from rest at a distance of 3R from the centre of a thin-walled hollow sphere of radius R and mass M as shown. The hollow sphere is fixed in position and the only force on the point mass is the gravitational attraction of the hollow sphere. There is a very small hole in the hollow sphere through which the point mass falls as shown. The velocity of a point mass when it passes through point P at a distance R//2 from the centre of the sphere is

A point particle of mass m is released from a distance sqrt(3)R along the axis of a fixed ring of mass M and radius R as shown in figure. Find the speed of particle as it passes through the centre of the ring.

A point particle of mass m is released from a distance sqrt(3)R along the axis of a fixed ring of mass M and radius R as shown in figure. Find the speed of particle as it passes through the centre of the ring.

The figure shows a disc of radius 3R from which a circular hole of radius R is cut as shown in the figure. The distance of the centre of mass of the remaining object from the point O is

The figure shows a disc of radius 3R from which a circular hole of radius R is cut as shown in the figure. The distance of the centre of mass of the remaining object from the point O is

Three infinitely long charge sheets are placed as shown in the figure Find the electric field at the point P.