Civil Engineering MCQJE Level Civil Engineering
Drainage scenario: The frequency of light of wavelength 400 nm is approximately:
Physics and ChemistryPhysics and ChemistryHARD
Choose the correct answer
A
7.50e+14 Hz
B
1.33e-15 Hz
C
7.50e+15 Hz
D
7.50e+13 Hz
Correct Answer
A. 7.50e+14 Hz
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Frequency f = c/lambda = 3x10^8 / 400x10^-9 Hz.
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This MCQ belongs to RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.