Maximum usuable frequency $(M U F)$ in F-region layer is $x$ , when the critical frequency is $60 M H z$ and the angle of incidence is $70^{o}$ . Then $x$ is

150 M H z

No worries! We‘ve got your back. Try BYJU‘S free classes today!

170 M H z

No worries! We‘ve got your back. Try BYJU‘S free classes today!

175 M H z

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

190 M H z

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $175 M H z$
$M U F = \frac{f_{c}}{cos θ} = 60 \times 10^{6} \times \frac{1}{0.342} = 175.43 M H z$

Suggest Corrections

Similar questions

Q. The critical frequency of the layer is:

Q. If critical frequency for ionosphere is 30MHz. Calculate the maximum frequency which can come back on earth if transmitted at an angle

60^{0}

from vertical position:

Q. Maximum devation accurs in a homogeneous prism of refracting angle

A_{1}

and having critical angle of its material as

A_{2}

when the angle o incidence is

The maximum frequency of X-rays produced in an X-ray tube is $v$ when the operating voltage is $V$ . What is the maximum frequency of the X-rays when the operating voltage is $\frac{V}{2}$ ?

Q. The threshold frequency for certain metal is

v_{0}

. When light of frequency

2 v_{0}

is incident on it, the maximum velocity of photoelectrons is

4 \times 10^{6} m s^{- 1}

. If the frequency of incident radiation is increased to

5 v_{0}

, then the maximum velocity of photoelectrons will be :

Join BYJU'S Learning Program

Maximum usuable frequency (MUF) in F-region layer is x, when the critical frequency is 60MHz and the angle of incidence is 70o. Then x is

The correct option is C 175MHzMUF=fccosθ=60×106×10.342=175.43 MHz

Maximum usuable frequency $(M U F)$ in F-region layer is $x$ , when the critical frequency is $60 M H z$ and the angle of incidence is $70^{o}$ . Then $x$ is

The correct option is C $175 M H z$
$M U F = \frac{f_{c}}{cos θ} = 60 \times 10^{6} \times \frac{1}{0.342} = 175.43 M H z$