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Dmitry [639]
3 years ago
8

Objects get their colors from reflecting only certain wavelengths when hit with white light. Light reflected from a green leaf i

s found to have a wavelength of 4.90×10^-7. What is the frequency of the light?​
Chemistry
1 answer:
Vesnalui [34]3 years ago
3 0

Answer:

frequency = 6.12× 10¹⁴ s⁻¹

Explanation:

Given data:

Wavelength = 4.90 ×10⁻⁷ m

Frequency = ?

Solution:

Formula:

<em>Speed of wave = frequency × wavelength</em>

Speed of wave = 3 × 10⁸ m/s

<em>Speed of wave = frequency × wavelength</em>

<em>frequency = Speed of wave/wavelength</em>

frequency <em>= </em>3 × 10⁸ m/s / 4.90 ×10⁻⁷ m

frequency = 0.612 × 10¹⁵ s⁻¹

frequency = 6.12× 10¹⁴ s⁻¹

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