A high-speed fiber-optic link connects a deep-sea research station to a mainland laboratory. The length of the optical fiber is 6.12 × 106 m.
An optical signal takes 3.00 × 10-2 s to travel from the station to the laboratory.
An infrared laser used to transmit the signal has a wavelength of 1360 nm within the optical fiber.
Calculate the frequency of the infrared laser light inside the fiber, using only the data provided.
64 exam-style questions on Edexcel GCSE Physics 4.1 Wave properties, covering 4.1.1 Waves transfer energy and information, 4.1.2 Frequency, wavelength, amplitude, period and wavefronts, 4.1.3 Longitudinal and transverse waves, 4.1.4 The wave speed equations, 4.1.5 Measuring wave velocity, and 4.1.6 Calculating depth or distance from waves. Each one has a worked solution and a mark scheme showing where the marks go.