MCQ
A false balance has equal arms. An object weigh $X$ when placed in one pan and $Y$ when placed in other pan, then the weight $W$ of the object is equal to
- A$\sqrt{X Y}$
- ✓$\frac{X+Y}{2}$
- C$\frac{X^2+Y^2}{2}$
- D$\frac{2}{\sqrt{X^2+Y^2}}$
✓
Answer
Correct option: B.
$\frac{X+Y}{2}$
(b) When false balance has equal arms then, $W=\frac{X+Y}{2}$
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