Question

calculate the time period of the wave if it's wave length is 3km and speed is 3×10^8m/s^-1​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

given: speed(V) = 3×10⁸m/s

wavelength (lambda) = 3km or 3000m

we know, V = F × lambda

F = 1/T

therefore, 3×10⁸ = 3×10³/T

T = 3×10³/3×10⁸

T = 3×10^(-5) s or 0.00005s

Hope it helped :)