High School

Thank you for visiting What are the wavelengths of electromagnetic waves in free space that have frequencies of a 5 00 x 10¹â ¹ Hz b 4 00 x. This page is designed to guide you through key points and clear explanations related to the topic at hand. We aim to make your learning experience smooth, insightful, and informative. Dive in and discover the answers you're looking for!

What are the wavelengths of electromagnetic waves in free space that have frequencies of:

(a) 5.00 x 10¹â¹ Hz
(b) 4.00 x 10⁹ Hz

Choose the correct option:

A. (a) 6 x 10⁻⁸ meters, (b) 7.5 x 10¹ meters
B. (a) 1.2 x 10⁻⁹ meters, (b) 7.5 x 10¹ meters
C. (a) 1.2 x 10⁸ meters, (b) 7.5 x 10⁻¹ meters
D. (a) 6 x 10⁻⁸ meters, (b) 7.5 x 10⁻¹ meters

Answer :

The wavelengths for frequencies of 5.00 x 1019 Hz and 4.00 x 109 Hz are 6 x 10-12 meters and 7.5 x 10-2 meters respectively, corresponding to gamma rays and microwaves in the electromagnetic spectrum. Therefore, the wavelengths are (a) 6 x 10-12 meters (which is in the gamma-ray range of the electromagnetic spectrum) and (b) 7.5 x 10-2 meters (which corresponds to the microwave part of the spectrum).

The wavelengths of electromagnetic waves in free space for given frequencies can be calculated using the formula wavelength (λ) = speed of light (c) / frequency (f). The speed of light in a vacuum is approximately 3.00 x 108 meters per second (m/s).

For frequency f = 5.00 x 1019 Hz, λ = 3.00 x 108 m/s / 5.00 x 1019 Hz = 6 x 10-12 meters.

For frequency f = 4.00 x 109 Hz, λ = 3.00 x 108 m/s / 4.00 x 109 Hz = 7.5 x 10-2 meters (or 75 centimeters).

Therefore, the wavelengths are (a) 6 x 10-12 meters (which is in the gamma-ray range of the electromagnetic spectrum) and (b) 7.5 x 10-2 meters (which corresponds to the microwave part of the spectrum).

Thank you for reading the article What are the wavelengths of electromagnetic waves in free space that have frequencies of a 5 00 x 10¹â ¹ Hz b 4 00 x. We hope the information provided is useful and helps you understand this topic better. Feel free to explore more helpful content on our website!

Rewritten by : Jeany