88 MHz to 108 MHz and bandwidth is 2Fm. As in radio mirchi.
the frequency range of an am wave is 20herz to 20kilo herz
The frequency range of FM signal is 88hz to 108hz.
freq range of rf is 3hz (extremely low frequency) to 300Ghz (extremely high frequency)
This frequency range is used for A.M Radios specifically M.W(Medium Wave) Band. More information of MW band will be on http://en.wikipedia.org/wiki/Medium_wave