What is Gray
Gray: Gy (after L.H. Gray, 1905-1965): The derived SI unit of engrossed dose, stated as the absorbed dose in which the energy per unit mass communicated to the matter by the ionizing radiation is 1 J/kg; it therefore has units of J/kg.
Hubble's law (E.P. Hubble; 1925): The relationship discovered between radial velocity and distance. The further away a galaxy is away from is, the quicker it is receding away from us. The constant of proportionality is the Hubble cons
What do you mean by the term alloy? Briefly illustrate it.
Weiss constant: The characteristic constant dependent on the substance, employed in computing the susceptibility of the paramagnetic materials.
Briefly explain the measure of the force of gravity on the object?
Describe the term ntu in thermodynamics? Illustrate in short.
What do you understand by the term anti-aliasing? Describe briefly?
Write a short note on diffuse reflection?
Kirchhoff's laws (G.R. Kirchhoff) Kirchhoff's first laws: An incandescent solid or gas in high pressure will generate a continuous spectrum. Q : Radioactive dating-Determining of age In the radioactive dating we use half life to find out the age of a sample however not average life why? Describe.
In the radioactive dating we use half life to find out the age of a sample however not average life why? Describe.
Planck constant: h: The basic constant equivalent to the ratio of the energy of a quantum of energy to its frequency. This is the quantum of action. This has the value 6.626 196 x 10-34 J s.
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