Question

answer it..fast.

solve it​

Answer 1

Answer:

252hz

Explanation:

on loading frequency of A decreases.

the equation can be

n(A)-n(B)=4   or n(B)-n(A)=4

to decide which is correct:

when we load A beats become 2 i.e decreases i.e  1st equation is correct.

if we take second one if A decreases then no.of beats formed should increase.

on substituting in 1st equation n(B)=256-4=252hz

Answer 2

c option is correct answer.

For detailed solution check out the attachment