Question

Blue light waves have more energy than red light waves. Which of these situations most likely produces a photoelectric effect? You may assume that the same metal is used in each situation. Check all that apply.

Answer 1

shining dim blue light on a strip of metal;
shining bright blue light on a strip of metal

Answer 2

Blue light waves are a part of the wavelengths in a light spectrum. When they enter the eye, they have to pass through the retina and continuous exposure to blue light could damage the retina. The wavelength is between 380 nm and 500 nm.

Red light waves, unlike blue light waves are longer in a light spectrum at between 620 to 750 nm.

P.s: Nm is Newton meter

Photoelectric effect is simply the release of electrons when radio waves or light rays hit a surface.

Therefore, the situations that most likely produces a photoelectric effect are:

• shining dim blue light on a strip of metal;
• shining bright blue light on a strip of metal

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