AIIMS2003Physics-Waves
AIIMS 2003 Physics Ionospheric Reflection MCQ Question
Type: MCQ-numerical-Medium-Class 11
In short wave communication, waves of which of the following frequencies will be reflected back by the ionospheric layer having electron density 10¹¹ per m³?
A
2 MHz
B
10 MHz
C
12 MHz
D
18 MHz
Correct Answer
Option A
Detailed Explanation
If the height of the antenna is h, then the maximum distance up to which the TV transmission can be received is proportional to h^1/2.
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