Q138. What is the frequency of an electromagnetic wave with a wavelength of 3 × 10-3 m? (Use the speed of light, c = 3 × 108 m/s)Physics — NUST Mock By IBAGRADS 2 — Question 138 of 200A. 1 × 106 HzB. 1 × 107 HzC. 1 × 1011 HzD. 1 × 1013 HzPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →