David Sang and Darrell Hamilton Solutions for Chapter: Properties of Waves, Exercise 3: Exercise 14.2

Complete the table to show the quantities related by the equation $v=f\lambda$ and their units.

The wave is detected $12.5 \min$ after the earthquake. Why the distance can only be an estimate$?$

Light wave travels at a speed of  $3.0\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1}$. Red light has a wavelength of  $7.0\times {10}^{-7} \mathrm{m}$. Calculate its frequency.

Infrared radiation travels at the same speed as light, but it has a lower frequency than red light. State whether its wavelength is greater than or less than of red light.