Q87. An electromagnetic wave travels in a straight line through a vacuum. The wave has a frequency of 6.0 THz. What is the number of wavelengths in a distance of 1.0 m along the wave?Physics — Alternating Current — Question 87 of 95A. 5.0 × 10–5B. 2.0 × 101C. 2.0 × 104D. 5.0 × 107Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →