In a circle, a chord 1 cm away from the centre is 6 cm long. What is the length of a chord 2 cm away from the centre.

In a circle, a chord 1 centimetre away from the centre 6 cemtimetres long. What is the length of a chord 2 centimetres away from the centre?

In a circle, a chord 20 centimetres away from the centre 30 centimetres long. What is the length of a chord 7 centimetres 'away from the centre?

The diameter of circle is 30 cm. What is the length of a chord 9cm away from the center?

In a circle a chord of length 42 cm is 20 cm away from the centre. Find the length of chord which is 21 cm away from the centre.

In a circle a chord of length 42 cm is 20 cm away from the centre. Find the radius of the circle.

A particle moving uniformly along a circle, experiences a force directed towards the centre and an equal and opposite force directed away from the centre. Name the two forces directed towards and away from the centre.

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface to 10V. The potential at the centre of the sphere is ......(a)zero (b)10V (c)the same as that at a point 5 cm away from the surface (d)the same so that at a point 25 cm away from the surface

Wrap a rubber ball of diameter 12 cm completely with an aluminium foil and make the surfaces smooth . Where will be the image of an object kept 12 cm away from the centre of the ball ? Is the image real or virtual ?

If the length of a chord of a circle of diameter 40 cm is 20 cm , what is the angle subtended by the chord at the centre of the circle ?