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5) State how the frequency of a carrier varies in a PM system when the modulating signal and frequency change.14) Define narrowband FM. What criterion is used to indicate NBFM?26) What is the capture effect and what causes it?Chapter 5 Problems:1) A 162-Mhz carrier is deviated by 12 Khz by a 2 Khz modulating signal. What is the modulation index?2) The maximum deviation of an FM carrier with a2.5-kHz signal is 4 khz. What is the deviation ratio?10) Use Carson’s rule to determine the bandwidth of an FM channel when the maximum deviation allowed is 5-Khz at frequencies up to 3.333 kHz. Sketch the spectrum, showing carrier and sideband values.