Physics miscellaneousHard
Question
For the given uniform square lamina ABCD, whose center is O
Options
A.IAC = √2IEF
B.√2IAC = IEF
C.IAD = 3IEF
D.IAC = IEF
Solution
By the theorem of perpendicular axes,
IZ = IX + IY or IZ = 2IY
(∵ IZ = IY by symmetry of the figure)
∴ IEF =
...... (1)Again by the same theorem
IZ = IAC = IBD = 2IAC
(∴ IAC IBD by symmetry of the figure ∴ IAC
) ......(ii) From (i) and (ii) we get
IEF = IAC
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