Explain the term critical frequency, Physics

Explain the term 'critical frequency' in relation to sky wave propagation of electromagnetic waves.

On a particular day, the maximum frequency reflected from the ionosphere is 10 MHz on another day, it was found to reduce to 8 MHz calculate the ratio of the maximum electron densities of the ionosphere on the two days

Posted Date: 6/11/2013 5:12:06 AM | Location : United States







Related Discussions:- Explain the term critical frequency, Assignment Help, Ask Question on Explain the term critical frequency, Get Answer, Expert's Help, Explain the term critical frequency Discussions

Write discussion on Explain the term critical frequency
Your posts are moderated
Related Questions
Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon ascends from the launch site at a constant vertical speed of 2.70 m/s. At a height of 202 m, the balloonist main

1.Consider the dangers of using a camp stove inside an enclosed space like a tent. Test data show that a high heat liquid fuel camp stove can dramatically increase CO mixing ratios

Monochromatic light (single wavelength) falls on two narrow slits S1 and S2 which are very close together acts as two coherent sources, when waves coming from two coherent sources

A block of wood initially at rest slides down an inclined plane. Neglecting friction, the kinetic energy of the block at the bottom of the plane is: a)  All converted into h

QUESTION 1 A car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle ? to the horizontal where sine ? = 1/200. Resistance to motion (apart from gravity) is 1.

discovery of electricity


Containers in Illustrations C and D are identical Each container is 3.25'w x 3.25'w  x 8.4'l Total capacity of each container 88.725 cubic feet Each container is filled wi

When were foundations of quantum mechanics established? Foundations of quantum mechanics : The quantum mechanics foundations were established throughout the first half of th

A passenger sitting in the rear of a bus claims that she was injured as the driver slammed on the breaks, causing a suitcase to come flying towards he from the front of the bus. If