Physics, 22.01.2021 14:00 stephb1369
A photographer might use a light meter to make sure she has enough light for
a good photograph. The meter absorbs light and provides a current that
moves the needle on the meter. How does this phenomenon support the
particle model of light?
A. It is the result of constructive interference.
B. It is the result of the photoelectric effect.
C. It is the result of the diffraction of a beam of light.
D. A light meter is a blackbody radiator.
Answers: 2
Physics, 22.06.2019 05:00
Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?
Answers: 3
Physics, 22.06.2019 05:30
What do you think car designers do if the damage caused by a crash test is too severe?
Answers: 1
Physics, 22.06.2019 11:30
Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?
Answers: 2
Physics, 22.06.2019 15:00
You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?
Answers: 1
A photographer might use a light meter to make sure she has enough light for
a good photograph. The...
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