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fomenos
3 years ago
13

A ray of yellow light has a wavelength of about 5.8×10−7 m. Will exposure to yellow light cause electrons to be emitted from ces

ium?
Chemistry
1 answer:
Igoryamba3 years ago
7 0
The threshold frequency of Cesium is 5.2 x 10^14 Hz.

To find the frequency of yellow light, we use the equation:
speed of light = wavelength x frequency
3 x 10^8 = 5.8 x 10^-17 x frequency
frequency = 5.17 x 10^24

This is higher than the threshold frequency of Cesium, thus, electrons will be emitted.

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