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Planck radiation law
A law that defined blackbody radiation better than its predecessor, therefore resolving the ultraviolet catastrophe. It is depend on the supposition that electromagnetic radiation is quantized.
At thermodynamic temperature T, for a blackbody, the radiancy R onto a range of frequencies among nu & nu + dnu is provided by
R = 2 pi h nu3/[c3 [exp (h nu/k T) - 1]].
Explain the meaning of Diffraction The spreading of a wave around a corner or through a slit of width b, which is about an order of magnitude of the size of the wavelength, is
The density, ?, of an object is given by the ratio of the object's mass, m, and volume, V, according to the equation ? = m/V. What is the density of a cube that is 1.2 cm on each s
explain in detail the construction and working of a scientillation counter
Deduce an expression for the electric potential because of an electric dipole at any point on its axis. Mention one contrasting feature of electric potential of a dipole at a point
Consider a particle of energy E is incident from the left on a rectangular potential barrier of height and width and on both sides of this barrier at which means that no force act
In a particular region there is a uniform current density of 18 A/m 2 in the positive direction. What is the value of fB·ds when that line integral is calculated along the three s
In two-dimension motion a body go in a plane. e.g. a particle rolling in a circle, a cricket ball caught by a fielder. In the first case the body can go round with a fix velocity o
Q. What is meant by doping? The process of addition of extremely small amount of impurity into an intrinsic semiconductor is called doping.
AVERAGE VELOCITY: The ratio of the total displacement to the total time taken by the body is known as average velocity and represented by V ?av.
How many integers satisfy the inequality |10(x+1)/x^2+2x+3|=1?
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