Atomic StructureHard
Question
A radio station emits radiations of 400 kHz. The metre band of the station is
Options
A.400
B.750
C.1333.33
D.7.5
Solution
$\lambda = \frac{c}{\upsilon} = \frac{3 \times 10^{8}}{400 \times 10^{3}} = 750\text{ m}$
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