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sesenic [268]
3 years ago
10

A laser pointer used in a lecture hall emits light at 650 nm what is the frequency

Physics
1 answer:
Aleksandr-060686 [28]3 years ago
7 0
<span>The formula for frequency is speed of light divided by wavelength. 650 nm represents the wavelength and 3x10^8 m/s is the speed of light. If you convert 650nm to meters you get 6.5x10^-7 m so you can divide using the formula above, giving you 4.6x10^14 1/s or Hz, the unit of frequency in Physics.</span>
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