the distance of satellite from earth is 2,240,000 m
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Answer:
wave length is 1.2m
Explanation:
since formula of wave length is v/f
v(speed of sound in air at stp is 300ms^-1)
f(frequency 250hertz)
then wave length is 300÷250 which give 1.2m
Due to the conservation of electric charge, the current is uniform throughout an electrical circuit.
The answer is B.