Question

If the band width is 1.6 × 10¹² Hz, how many communication channels can be obtained with 16 KHz band width radio signal ? 

(A) 10¹⁵ 

(B) 10¹¹ 

(C) 10¹⁰ 

(D) 10⁸

Answer 1

The correct option is (D) 10⁸.

Explanation:

Total BW = 1.6 × 10¹²Hz,   BW = of signal = 16 KHz

∴ Number of communication channels = [(1.6 × 10¹²) / (16 × 10³)] = 10⁸