1.

Ten tuning forks are arranged in increasing order of frequency in such a way that any two nearest tuning forks produce 4 beats/sec. The highest frequency is twice of the lowest. Possible highest and the lowest frequencies are                                                                    [MP PMT 1990; MHCET 2002]

A.            80 and 40                               
B.            100 and 50
C.            44 and 22                               
D.            72 and 36
Answer» E.


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