Question

Consider a positively charge ring of radius R having 'Q' charge with a point charge q at its centre then-

(1) If q is +ve and is displaced along the axis of the ring and released it will never come back to the centre of ring

(2) If q is –ve and is displaced along the axis of the ring and released then it will definitely perform S.H.M. about the centre of the ring.

• A. Both (1) and (2) are correct
• B. Only (1) is correct but (2) is wrong
• C. Only (2) is correct but (1) is wrong
• D. Both (1) and (2) are wrong

Answer 1

Answer: (B)

Only (1) is correct but (2) is wrong

Answer 2

1^st statement is true but second is false because for large displacement 'q' will not perform S.H.M.