Match List-$I$ with List-$II$:
List-$I$ List-$II$ $A$. Troposphere $I$. Approximate $65-75 \ km$ over Earth's surface $B$. $E$-Part of Ionosphere $II$. Approximate $300 \ km$ over Earth's surface $C$. $F_2$-Part of Ionosphere $III$. Approximate $10 \ km$ over Earth's surface $D$. $D$-Part of Ionosphere $IV$. Approximate $100 \ km$ over Earth's surface
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
|---|---|
| $A$. Troposphere | $I$. Approximate $65-75 \ km$ over Earth's surface |
| $B$. $E$-Part of Ionosphere | $II$. Approximate $300 \ km$ over Earth's surface |
| $C$. $F_2$-Part of Ionosphere | $III$. Approximate $10 \ km$ over Earth's surface |
| $D$. $D$-Part of Ionosphere | $IV$. Approximate $100 \ km$ over Earth's surface |
Choose the correct answer from the options given below:
- A$A-III, B-IV, C-II, D-I$
- B$A-I, B-II, C-IV, D-III$
- C$A-I, B-IV, C-III, D-II$
- D$A-III, B-II, C-I, D-IV$
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Similar Questions
Match List-$I$ with List-$II$:
List-$I$ List-$II$ $A$. $AM$ Broadcast $I$. $88-108\,MHz$ $B$. $FM$ Broadcast $II$. $540-1600\,kHz$ $C$. Television $III$. $3.7-4.2\,GHz$ $D$. Satellite Communication $IV$. $54-890\,MHz$
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
|---|---|
| $A$. $AM$ Broadcast | $I$. $88-108\,MHz$ |
| $B$. $FM$ Broadcast | $II$. $540-1600\,kHz$ |
| $C$. Television | $III$. $3.7-4.2\,GHz$ |
| $D$. Satellite Communication | $IV$. $54-890\,MHz$ |
Choose the correct answer from the options given below:
If a carrier wave $C(t) = A \sin \omega_c t$ is amplitude modulated by a modulating signal $m(t) = A \sin \omega_m t$,then the equation of the modulated signal $[C_m(t)]$ and its modulation index are respectively:
DifficultJEE MAIN 2013
View Solution$A$ $100\,m$ long antenna is mounted on a $500\,m$ tall building. The complex can become a transmission tower for waves with $\lambda$ (approx) ........ $m$.
Medium
View Solution$A$ transmitting antenna has a height of $320\, m$ and that of the receiving antenna is $2000\, m$. The maximum distance between them for satisfactory communication in line-of-sight mode is $d$. The value of $d$ is $\ldots \ldots \, km$.
If the highest frequency modulating a carrier is $5\, kHz$,then the number of $AM$ broadcast stations accommodated in a $90\, kHz$ bandwidth are ....... .
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