Pick up the correct statement from the following : Options: A . &nbspIf two equal and perfectly elastic smooth spheres impinge directly, they interchange their velocities. B . &nbspIf a sphere impinges directly on an equal sphere which is at rest, then a fraction`frac(1)(2)` (1 - e2) the original kinetic energy is lost by the impac C . &nbspIf a smooth sphere impinges on another sphere, which is at rest, the latter will move along the line of centres. D . &nbspIf two equal spheres which are perfectly elastic impinge at right angles, their direction after impact will still be at right angles. E . &nbspAll the above.

Pick up the correct st

Question

Pick up the correct statement from the following :

Options:

A . If two equal and perfectly elastic smooth spheres impinge directly, they interchange their velocities.

B . If a sphere impinges directly on an equal sphere which is at rest, then a fraction`frac(1)(2)` (1 - e2) the original kinetic energy is lost by the impac

C . If a smooth sphere impinges on another sphere, which is at rest, the latter will move along the line of centres.

D . If two equal spheres which are perfectly elastic impinge at right angles, their direction after impact will still be at right angles.

E . All the above.

Answer: Option E

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