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A hypothetical electromagnetic wave is show below.

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A hypothetical electromagnetic wave is show below.

A hypothetical electromagnetic

The frequency of the wave is \(x \times 10 ^{19} Hz.\) x = ______ (nearest integer)

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Correct answer is : 5

\(\lambda = 1.5 \times 4\) Pm

\(=6 \times 10 ^{-12}\) meter

\(\lambda v = C\)

\(6\times 10^{-12} \times v = 3 \times 10 ^8\)

\(v =5 \times 10 ^{19} Hz\)

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