JEE PHYSICS MCQ: COMMUNICATION SYSTEMS

1 Hard

1 of 1

Understanding +4 | -1

In a radio receiver, the short wave and medium wave stations are tuned by using the same capacitor but coils of different inductance

{L_s}

and

{L_m}

respectively then

View answer and explanation

Correct option: B

{L_s} < {L_m}

Option B (

{L_s} < {L_m}

) is correct because short wave stations have higher frequencies than medium wave stations, and since frequency is inversely proportional to the square root of inductance, the inductance for short waves must be smaller.

More Questions from COMMUNICATION SYSTEMS

Practice All Chapter MCQs →

Is it necessary for a transmitting antenna to be at the same height as that of the receiving antenna for line of sight communication? A TV transmitting antenna is

81 {~m}

tall. How much service area can it cover, if the receiving antenna is at the ground level? The radio waves of frequency 30 MHz to 300 MHz belong to In space communication, the sound waves can be sent from one place to another The wavelength of the carrier waves in a modern optical fibre communication network is close to In an amplitude modulated wave for audio frequency of 500 cycle/second, the appropriate carrier frequency will be

100 \%

modulation in FM means