An aeroplane in which the distance between the tips of using is $50\;m$ is flying horizontally with speed of $360\;km/hr$ over a place where the vertical component of earth's magnetic field is $2.0 \times 10^{-4}\;Weber /m^{2}$ The potential difference between the tips of wings will be

Question

$(a)\;0.1\;V \\ (b)\;1.0\;V \\(c)\;0.2\;V \\(d)\;2.0\;V $