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Communication Systems MCQ II Solutions
- Q15.10: An audio signal of 15kHz frequency cannot be transmitted over long distances without modulation because
- Q15.10: An audio signal of 15kHz frequency cannot be transmitted over long distances without modulation because
- Q15.11: Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz. Which of the following statements are true?
- Q15.11: Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz. Which of the following statements are true?
- Q15.12: A TV trasmission tower has a height of 240 m. Signals broadcast from this tower will be received by LOS communication at a distance of (assume the radius of earth to be $6.4 \times 10^6$ m)
- Q15.12: A TV trasmission tower has a height of 240 m. Signals broadcast from this tower will be received by LOS communication at a distance of (assume the radius of earth to be (6.4 \times 10^{6}) m)
- Q15.13: The frequency response curve (Fig. 15.2) for the filter circuit used for production of AM wave should be
- Q15.13: The frequency response curve (Fig. 15.2) for the filter circuit used for production of AM wave should be
- Q15.14: In amplitude modulation, the modulation index $m$, is kept less than or equal to 1 because
- Q15.14: In amplitude modulation, the modulation index m, is kept less than or equal to 1 because
Other Exercises for CBSE - Class 12 Physics Communication Systems
Chapters in CBSE - Class 12 Physics
- Electric Charges and Fields
- Electrostatic Potential and Capacitance
- Current Electricity
- Moving Charges and Magnetism
- Magnetism and Matter
- Electromagnetic Induction
- Alternating Current
- Electromagnetic Waves
- Ray Optics and Optical Instruments
- Wave Optics
- Dual Nature of Radiation and Matter
- Atoms
- Nuclei
- Semiconductor Electronics
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Mubaraknagar, Nizamabad
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Hello, I'm HARISH, I've 10+ years of experience in teaching chemistry for Mains & ADV, NEET & state board exam levels.
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Mukherjee Nagar, Delhi
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Kuvempu Nagar, Bellary
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Teaching CBSE 12th Mathematics online and offline
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Bhamian Khurd, Ludhiana
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I am the author of seven books and a proud recipient of the Best Teacher Award from a reputed CBSE school. With over eight years of teaching experience at the school level and fifteen years of expertise in teaching Communication Skills and English Literature at a prestigious university, I bring a strong academic foundation and practical understanding of student development. My diverse teaching background has enabled me to mentor learners with varying abilities, helping them grow intellectually, linguistically, and personally. With this rich experience, I strive to ensure the all-around development of every student, fostering confidence, clarity of thought, and a lasting appreciation for the English language.
