Question

A weight can be hung in any of the following four ways by string of same type. In which case the string is most likely to break?

• A. A
• B. B
• C. C
• D. D

Answer 1

The correct option is C C

Consider the string makes an angle $\theta$ with the horizontal,
Taking FBD of the block, we get
$mg=2Tsin\theta$
$\therefore T=\frac{mg}{2sin\theta }$
Now, as the denominator decreases Tension becomes more and the string breaks.
It means $\theta$ should be minimum in case of maximum Tension and to break the string.
Thus, C is the case