Question
9.4.2 Test (CST): Computer-Scored Unit Test Questlon 4 of 25 An electromagnetic wave has a frequency of 3.7 xx10^(18)Hz and a speed of 3xx 10^(8)m//s . Use the equation for wavelength to calculate the wavelength of this wave. A. 8.11 xx10^(-11)m B. 8.31 xx10^(12)m C. 1.11 xx10^(27)m D. 4.51 xx10^(-6)m
Answer
4.2
(257 Votes)
Rory
Professional · Tutor for 6 years
Answer
A
Explanation
1. The formula to determine the wavelength (λ) of an electromagnetic wave is given by:
Where:
is the wavelength,
is the speed of the electromagnetic wave,
is the frequency of the electromagnetic wave.2. Plugging in the given values:
Therefore, the wavelength of the electromagnetic wave is
, which matches option A.