Physics Question:

Download Job Interview Questions and Answers PDF

Does sunlight reflected off a mirror increase the temperature of the sun-rays?

Physics Interview Question
Physics Interview Question

Answer:

A standard planar mirror will not increase the energy contained in the rays that reflect off it. In fact, there will be some loss of energy since the reflective surface is not perfect. There is some reduction in the light's intensity as it passes through the mirror's glass and reflects off the backing surface.

Parabolic mirrors, on the other hand, focus and concentrate the light rays on a single point in front of the mirror, aptly named the focus. Although the energy is not amplified, it will be effectively increased because of the additive effect that will result when the light energy is concentrated.

Download Physics Interview Questions And Answers PDF

Previous QuestionNext Question
When a radar gun says the pitch is 90 miles per hour at what point in the balls travel to home plate is the radar gun measuring the velocity?How is radiation emitted from the body?