The number of telephonic messages which are carried by a fibre at an instant with much less intensity loss are

The number of telephone conversations by a fibre of band width 40MHz, with much less intensity loss, are:

The number of telephone conversations by a fibre of band width 40MHz, with much less intensity loss, are:

The number of telephone conversations by a fibre of band width 40MHz, with much less intensity loss, are:

The number of telephone conversations by a fibre of band width 40MHz, with much less intensity loss, are:

A microwave telephone link operating at the central frequency of 10 GHz has been established. If 2% of this is available for microwave communication channerl and each telephone is alloted a bank width of 8 KHz. the number of telephone channels which cn be simultaneously granted is 2.5xx10^(a) . What is the integer value of a?

The number which is less than every natural number