JEE Main 9 Jan 2020 Shift 2 Solved Paper

Section: Physics

Question : 8 of 75

Marks: +1, -0

A wire of length L and mass per unit length 6.0 × 10‌–3 kgm‌–1 is put under tension of 540 N. Two consecutive frequencies that it resonates at are : 420 Hz and 490 Hz. Then L in meters is :

[9 Jan 2020 Shift 2]

8.1 m
5.1 m
1.1 m
2.1 m

Validate

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