Questions
PHYSICS 1201 SU2025 (10585) Final Exam- Requires Respondus LockDown Browser
Multiple choice
Which of the following statements about electromagnetic waves in free space are true? (There are two correct answers. Select both.)
Options
A.The higher-frequency waves have shorter wavelengths than the lower-frequency waves.
B.The wavelengths of the visible waves are some of the shortest electromagnetic waves.
C.The higher-frequency travel faster than the lower-frequency waves.
D.The electric field vector is always at right angles to the magnetic field vector.
E.The wavelengths of the visible waves are some of the longest electromagnetic waves.
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Step-by-Step Analysis
This question asks us to identify two true statements about electromagnetic waves in free space and to justify why the others are false.
Option 1: The higher-frequency waves have shorter wavelengths than the lower-frequency waves. This is correct because, in free space, frequency and wavelength are inversely related by the equation c = fλ, where c is the constant spe......Login to view full explanationLog in for full answers
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