This question has Statement $-1$ and Statement $-2$ . Of the four choices given after the statements, choose the one that best describes the two statements
Statement $-1$ : Sky wave signals are used for long distance radio communication. These signals are in general, less stable than ground wave signals
Statement $-2$ : The state of ionosphere varies from hour to hour, day to day and season to season
This question has Statement $-1$ and Statement $-2$ . Of the four choices given after the statements, choose the one that best describes the two statements
Statement $-1$ : Sky wave signals are used for long distance radio communication. These signals are in general, less stable than ground wave signals
Statement $-2$ : The state of ionosphere varies from hour to hour, day to day and season to season
- A
Statement $-1$ is true, Statement $-2$ is true and Statement $-2$ is not the correct explanation of Statement $-1$
- B
Statement $-1$ is false, Statement $-2$ is true
- C
Statement $-1$ is true, Statement $-2$ is false
- D
Statement $-1$ is true, Statement $-2$ is true and Statement $-2$ is the correct explanation of statement $-1$
Similar Questions
A plane electromagnetic wave travels in a medium of relative permeability $1.61$ and relative permittivity $6.44$. If magnitude of magnetic intensity is $4.5 \times 10^{-2} \;Am ^{-1}$ at a point, what will be the approximate magnitude of electric field intensity at that point$?$
(Given : permeability of free space $\mu_{0}=4 \pi \times 10^{-7}\;NA ^{-2}$, speed of light in vacuum $c =3 \times 10^{8} \;ms ^{-1}$ )
A plane electromagnetic wave travels in a medium of relative permeability $1.61$ and relative permittivity $6.44$. If magnitude of magnetic intensity is $4.5 \times 10^{-2} \;Am ^{-1}$ at a point, what will be the approximate magnitude of electric field intensity at that point$?$
(Given : permeability of free space $\mu_{0}=4 \pi \times 10^{-7}\;NA ^{-2}$, speed of light in vacuum $c =3 \times 10^{8} \;ms ^{-1}$ )
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