Question

The following are some statements about amplitude modulation (AM) and frequency modulation (FM): 

(A) The SNR (Signal to noise ratio) is better for AM as compared to FM. 

(B) During FM, linear amplifiers are not required because FM signals have a constant amplitude. 

(C) The operating range of AM as well as FM are nearly of the same order. 

(D) The fidelity of reception, for FM, is much better than for AM. 

The correct statement/s, from the above, is / are the statement / s. 

(1) (B) only 

(2) (B) and (D) only 

(3) (A) and (C) only 

(4) (C) only

Answer 1

Correct option: (2) (B) and (D) only

Explanation: 

Statement (A) is incorrect; it is the other way round. 

Statement (C) is incorrect; the operating range of FM is higher than that of AM. 

Statement (B) and (D) are both correct statements.