The frequency of light ray having the wavelength 3000Å is

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The frequency of light ray having the wavelength 3000Å is

Options

(a) 9×10¹³ cycle/sec
(b) 10¹⁵ cycle/sec
(c) 90 cycle/sec
(d) 3000 cycle/sec

Correct Answer:

10¹⁵ cycle/sec

Explanation:

n = v / λ = 3 × 10⁸ / 3000 × 10⁻¹° = 10¹⁵ cycle/sec.

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Topics: Wave Optics (101)
Subject: Physics (2479)

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