Question

Identify the wrong statement from the following

• A. If the length of a spring is halved, the time period of each part becomes $\frac{1}{\sqrt{2}}$ times the original
• B. The effective spring constant K of springs in parallel is given by $\frac{1}{K} = \frac{1}{K_1} + \frac{1}{K_2} + .....$
• C. The time period of a stiffer spring is less than that of a soft spring
• D. The spring constant is inversely proportional to the spring length

Answer 1

Answer: (B)

The effective spring constant K of springs in parallel is given by $\frac{1}{K} = \frac{1}{K_1} + \frac{1}{K_2} + .....$

Answer 2

The wrong statement is the effective spring constant $k$ of springs in parallel is given by
$\frac{1}{k}=\frac{1}{k_{1}}+\frac{1}{k_{2}}+\ldots$