Question

A uniform rectangular plate R of sides a and b and a uniform square plate S of side c have same masses and areas as shown in the figure. Then,

(i) (ii) $\frac { I _ { y R } } { I _ { y s } } > 1$

Which of the above relations is correct?

• A. (i) only
• B. (ii) only
• C. Both (i) and (ii)
• D. Neither (i) nor (ii)

Answer 1

Answer: (C)

Both (i) and (ii)

Answer 2

As

Area of rectangular plate R = Area of square plate S

$\therefore$ $\mathrm { a } = \mathrm { b } = \mathrm { c } ^ { 2 }$

(i)

As b < c $\therefore \frac { \mathrm { I } _ { \mathrm { xR } } } { \mathrm { I } _ { \mathrm { vS } } } < 1$

(ii)

As a > c $\therefore \frac { \mathrm { I } _ { \mathrm { yR } } } { \mathrm { I } _ { \mathrm { ys } } } > 1$