Question

Figure shows a sphere of mass M & radius ‘R’ let AA¢ and BB¢ be two axes as shown in figure then

(I) Parallel axes theorem is not applicable between axes AA¢& BB¢

(II) I _BB¢ = I _AA¢ + MR²

• A. Both of statement - I and statement - II are correct
• B. Statement - I is correct but statement-II is false
• C. Statement - I is false but statement - II is correct
• D. Both of statement - I and statement - II are false

Answer 1

Answer: (A)

Both of statement - I and statement - II are correct

Answer 2

Parallel axes theorem is applicable only between two parallel axes.

By symmetry I_CC' = I_AA'

Parallel axes theorem Ž I_BB' = I_{CC '} + MR² = I_AA' + MR²