JEE Main 15 Apr 2018 Shift 1 Solved Paper

Section: Physics

Question : 13 of 90

Marks: +1, -0

A tuning fork vibrates with frequency 256 Hz and gives one beat per second with the third normal mode of vibration of an open pipe. What is the length of the pipe ? (Speed of sound in air is 340ms−1)

[Main 15 April 2018 S1]

220 cm
190 cm
180 cm
200 cm

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