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STD 11 - 4.1 , newtons laws of motion — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 4.1 , newtons laws of motion4 Marks
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 {XY} $
  • ✓
    $\frac{{X + Y}}{2}$
  • C
    $\frac{{{X^2} + {Y^2}}}{2}$
  • D
    $\frac{2}{{\sqrt {{X^2} + {Y^2}} }}$
✓

Answer

Correct option: B.
$\frac{{X + Y}}{2}$
b
(b)When false balance has equal arms then,$W = \frac{{X + Y}}{2}$

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