An infrared wave and an ultraviolet wave travel through a vacuum.
Which row in the table correctly compares their speed and frequencies?
Speed of the waves in a vacuumFrequencies of the waves in a vacuumAdifferentthe sameBdifferentdifferentCthe samethe sameDthe samedifferent \begin{array}{c|c|c} & \text{Speed of the waves in a vacuum} & \text{Frequencies of the waves in a vacuum} \\ \hline \mathbf{A} & \text{different} & \text{the same} \\ \mathbf{B} & \text{different} & \text{different} \\ \mathbf{C} & \text{the same} & \text{the same} \\ \mathbf{D} & \text{the same} & \text{different} \end{array} ABCDSpeed of the waves in a vacuumdifferentdifferentthe samethe sameFrequencies of the waves in a vacuumthe samedifferentthe samedifferentRow A
Row B
Row C
Row D
198 exam-style questions on CIE IGCSE Physics Electromagnetic spectrum, covering Electromagnetic spectrum. Each one has a worked solution and a mark scheme showing where the marks go.