Embibe Experts Solutions for Exercise 2: Assignment

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Embibe Experts Physics Solutions for Exercise - Embibe Experts Solutions for Exercise 2: Assignment

Attempt the practice questions from Exercise 2: Assignment with hints and solutions to strengthen your understanding. Gamma Question Bank for Medical Physics solutions are prepared by Experienced Embibe Experts.

Questions from Embibe Experts Solutions for Exercise 2: Assignment with Hints & Solutions

EASY
NEET
IMPORTANT

Why is a slight shaking of the picture on a TV screen noticed when a low-lying aircraft passes overhead?

MEDIUM
NEET
IMPORTANT

What are TV signals? How can they be received?

HARD
NEET
IMPORTANT

What is modulation? A message signal frequency 10 kHz and peak voltage of 10 volts is used to modulate a carrier of frequency 1 MHz and peak voltage of 20 volts. Determine modulation index and the side bands produced.

EASY
NEET
IMPORTANT

A carrier wave of peak voltage 12 V is used transmit a message signal. What should be the peak voltage of the modulating signal in order to have a modulation index of 75 %?

MEDIUM
NEET
IMPORTANT

Why do we use short-waves bands for long-distance radio broadcast?

HARD
NEET
IMPORTANT

Explain sky-wave propagation of radio waves. Give diagram. Why is the transmission of signals using sky waves restricted to frequencies upto about 10 MHz?

EASY
NEET
IMPORTANT

What is range of frequencies in satellite communication? What is common between these waves and light waves?