Q. A layer of ionosphere does not reflect waves with frequencies greater than 10 MHz; then maximum electron density in this layer is
A) $1.23\ \times \ 10^{11}\ m^{- 3}$
B) $1.23\ \times \ 10^{10}\ m^{- 3}$
C) $12.3\ \times \ 10^{10}\ m^{- 3}$
D) $1.23\ \times \ 10^{12}\ m^{- 3}$
Explanation
The correct answer is Option A: $1.23\ \times \ 10^{11}\ m^{- 3}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.