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Mashutka [201]
3 years ago
14

NEED HELP QUICK

Physics
1 answer:
Arisa [49]3 years ago
3 0

Answer:

Correct answer: Wave's frequency f = 7.5 · 10¹⁴ Hz

Explanation:

Given:  wavelength λ = 4.0 · 10⁻⁷ m and

ultraviolet wave's  speed V = 3 · 10⁸ m/s

The formula for calculating frequency is:

f = V / λ = 3 · 10⁸ / 4.0 · 10⁻⁷ = 0.75 · 10¹⁵ = 7.5 · 10¹⁴ Hz

f = 7.5 · 10¹⁴ Hz

God is with you!!!

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