n FM the carrier may disappear at a particular value of modulation indexSelect one:a. Trueb. False

Modulation index of wideband FM systemA. >1B. < 1C. = 1D. NoneSelect one:a. Db. Bc. Ad. C

IF MODULATION INDEX IS GREATER THAN 1Select one:a. THE BASEBAND SIGNAL IS NOT PRESERVED IN THE ENVELOPE OF THE AM SIGNALb. ALL OF THE ABOVEc. THE RECOVERED SIGNAL IS DISTORTEDd. IT IS CALLED OVER MODULATION

FOR OVER MODULATION, THE VALUE OF MODULATION INDEX M ISSelect one:a. M &gt; 1b. NOT PREDETERMINEDc. M = 1d. M &lt; 1

The modulation index of FM is given byA. Modulating frequency /Frequency deviationB. Frequency deviation/ modulating frequencyC. Modulating frequency/ carrier frequencyD. Carrier frequency / Modulating frequency

In Frequency Modulation –*2 pointsAmplitude of the carrier remains sameFrequency of the carrier varies in accordance with the modulating signalThe number of side bands are infinite