Frequency of a Wave

Q.

What is frequency deviation formula?

Q.

What will happen if the modulation index is greater than $100\%$?

Q. Effective power radiated by a long wavelength baseband signal would be small.

1. True
2. False

Q. $100MHz$ FM carrier wave frequency is modulated by $10kHz$ sinusoidal modulating signal. If the maximum frequency deviation is $50kHz$, what is the value of modulation index?

1. 5
2. 10
3. 20
4. 2.5

Q. In an amplitude modulated wave for audio-frequency of $500$ cycles/second, the appropriate carrier frequency can be

1. $50\text{cycles/sec}$.
2. $100\text{cycles/sec}$.
3. $500\text{cycles/sec}$
4. $50,000\text{cycles /sec}$