CUET and UG exam CUET UG 2025 Mock Test Series Physics Electromagnetic Waves

The electric field of a plane electromagnetic wave oscillates sinusoidally with a frequency of 2.0 × 1010 Hz and an amplitude of 60 Vm-1. The wavelength (in cm) of the wave is (c = 3 × 108 ms-1): 

1
0.015 cm
2
0.15 cm
3
0.66 cm
4
1.5 cm
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