A second harmonic has to be generated in a string of length $l$ stretched between two rigid supports. The points where the string has to be plucked and touched are respectively
A second harmonic has to be generated in a string of length $l$ stretched between two rigid supports. The points where the string has to be plucked and touched are respectively
- A
$\frac{l}{4}, \frac{l}{2}$
- B
$\frac{l}{4}, \frac{3l}{4}$
- C
$\frac{l}{2}, \frac{l}{2}$
- D
$\frac{l}{2}, \frac{3l}{4}$
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- [JEE MAIN 2013]
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