In this situation, you have to use the equation
f = 1 / (2π√LC)
To find L
√LC = 1 / (2πf)
LC = (1 / (2πf)) ^ 2
L = (1 / C) * (1 / (2πf)) ^ 2
Substitute the values:
L = (1 / 0.0001) * (1 / (2 * 3.14 * 6.2)) ^ 2
L = 6.596253438
L = 6.6
So the Answer is this:
L = 6.6