Physics-Maxwell's Equations
NEET Physics Maxwell's Equations MCQ Question
Type: MCQ-numerical-Medium-Class 12
An electromagnetic wave travels in vacuum with a frequency of 15 MHz. What is its wavelength?
A
20 m
B
2 m
C
200 m
D
0.2 m
Correct Answer
Option A
Detailed Explanation
Using the relation νλ = c, where c is the speed of light in vacuum (3 × 10^8 m/s), we find λ = c/ν = (3 × 10^8 m/s) / (15 × 10^6 Hz) = 20 m.
Found an issue with this question?
Related Questions
More from
Which of the following types of electromagnetic waves was discovered last by the end of the nineteenth century?
EM SpectrumPhysics
Which of the following types of electromagnetic waves has the longest wavelength?
EM SpectrumPhysics
If a plane electromagnetic wave travels in vacuum with a frequency of 30 MHz, what is its wavelength?
EM SpectrumPhysics