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Does sunlight reflected off a mirror enhance the temperature of the sun-rays?
A standard planar mirror will not enhance the energy contained in the rays that reflect off it. In fact, there will be some loss of energy as the reflective surface is not perfect. There is some deduction in the light's intensity as it passes by 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 enhanced because of the additive effect that will result when the light energy is concentrated.
12 joule of work has to be completed against an existing electric field to take a charge of 0.01 C from A and B. How much is the potential difference VB-VA.
Define Hydrogen Rocket? The reaction chamber of a rocket engine is supplied with a mass flow rate m of sufficient oxygen and hydrogen to allow complete burning of the fuel an
Using formulas, absolute addresses, and x-y plot: Supplies are dropped from an airplane to land at a certain point. The velocity of the package at release from the airplane is
susceptibility by quink''s method
define non flow process
Right-hand rule: A trick for right-handed coordinate systems to find out which way the cross product of two 3-vectors will be directed. There are few forms of this rule, and t
Uses of Radio Isotopes: Industries: 1. Radio active isotopes are used to detect leakage in pipes. 2. It estimates weak and tear machine tools. 3. It is used to check t
explain air wedge
Intensities of an ordinary light and laser light The intensity (I) of a wave is the energy per unit time flowing through a unit normal area. The light from an ordinary light so
Define about the Puncture? A dense ideal gas flows out of a small hole in a tire which has a pressure P o inside. a) Calculate the velocity of gas outside the tire in the
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