Q: The amplitude of the sinusoidally oscillating electric field of a plane wave is 60 V/m . Then the amplitude of the magnetic field is
(a) 2 × 107 T
(b) 6 × 107 T
(c) 6 × 10-7 T
(d) 2 × 10-7 T
Click to See Answer :
Ans: (d)
Sol: $\large c = \frac{E_0}{B_0}$
$\large 3 \times 10^8 = \frac{60}{B_0}$
B0 = 2 × 10-7 T