‹ PrevQuestion 93 / 93 · latest first
Offline paper
Physics · 2018
JEE Main 2018 · 2018-04-08 Offline · Q28
A telephonic communication service is working at carrier frequency of 10 GHz. Only 10% of it is utilized for transmission. How many telephonic…
A telephonic communication service is working at carrier frequency of $\displaystyle 10$ GHz. Only $\displaystyle 10$% of it is utilized for transmission. How many telephonic channels can be transmitted simultaneously if each channel requires a bandwidth of $\displaystyle 5$ kHz ?
Official answer
(3)
$\displaystyle 2 \times 10^5$
More from Communication Systems
- A TV transmission tower has a height of 140 m and the height of the receiving antenna is 40 m. What is the maximum distance upto which signals can be…2019
- The TV transmission tower at a particular station has a height of 125 m. For doubling the coverage of its range, the height of the tower should be…2022
- An amplitude modulated wave is represented by C_m(t)=10(1+0.2 cos 12560 t) sin (111 × 10^4 t) volts. The modulating frequency in kHz will be \ \ \ \.2021
- The maximum and minimum amplitude of an amplitude modulated wave is 16 V and 8 V respectively. The modulation index for this amplitude modulated wave…2021
- An amplitude modulated signal is plotted below: Which one of the following best describes the above signal?2019
- Given below are two statements: Statement I: A speech signal of 2 kHz is used to modulate a carrier signal of 1 MHz. The bandwidth requirement for…2021
- A modulating signal 2 sin (6.28 × 10^6) t is added to the carrier signal 4 sin (12.56 × 10^9) t for amplitude modulation. The combined signal is…2022
- A message signal of frequency 3 kHz is used to modulate a carrier signal of frequency 1.5 MHz. The bandwidth of the amplitude modulated wave is2023
JEE Main 2018 Physics question, with the answer from NTA’s final answer key. Where our answers come from.