Practice MCQs for JEE Physics Communication System
Explore reliable objective questions for Communication System tailored for JEE learners. Utilizing these Physics multiple-choice formats ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.
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Access the complete set of multiple-choice questions for Communication System below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official JEE textbooks.
Multiple Choice Questions
(a) \( 10^4 \) Hz to \( 10^7 \) Hz
(b) \( 10^4 \) Hz to \( 10^{11} \) Hz
(c) 1 Hz to \( 10^4 \) Hz
(d) 1 Hz to \( 10^{11} \) Hz
Show Answer & Explanation
Answer: (b) \( 10^4 \) Hz to \( 10^{11} \) Hz
Explanation:
1. Practical radio communication uses electromagnetic waves from about 10 kHz (long radio waves) up to about 100 GHz (microwaves).
2. This is the range \( 10^4 \) Hz to \( 10^{11} \) Hz.
Teacher's Note:
1. Audio frequencies (up to about 20 kHz) are carried on much higher frequency carrier waves.
2. The upper limit is in the microwave region.
(a) the frequency of the radio waves only
(b) the power of the transmitter only
(c) both the frequency of the radio waves and the power of the transmitter
(d) neither of them
Show Answer & Explanation
Answer: (c) both the frequency of the radio waves and the power of the transmitter
Explanation:
1. Ground waves are attenuated by the earth. The attenuation grows rapidly with frequency, so the range falls as the frequency rises.
2. For a given frequency, a more powerful transmitter sends the signal farther before it becomes too weak.
3. So the range depends on both the frequency and the transmitter power.
Teacher's Note:
1. High frequencies are absorbed more by the ground.
2. More power gives a stronger signal at distance.
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Communication System Objective Questions & Solutions for JEE Physics
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FAQs
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By solving our JEE Physics Communication System MCQs Set 05, JEE students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Physics.
Yes, Physics MCQs for JEE have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused JEE exams.
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