Define Steradian or SI unit of solid angle
Steradian: sr: The supplementary SI unit of solid angle stated as the solid central angle of a sphere which encloses a surface on the sphere equivalent to the square of the sphere's radius.
Describe the reason in short why the length of a standard meter re-defined in the year of 1983?
Curie-Weiss law (P. Curie, P.-E. Weiss): A more broad form of Curie's law that states that the susceptibility, khi, of a paramagnetic substance is associated to its thermodynamic temperature T by the equation: Q : Secondary electron image and back What is main difference between secondary electron image and the back scattered electron image? State briefly.
What is main difference between secondary electron image and the back scattered electron image? State briefly.
Gaia hypothesis (J. Lovelock, 1969): The thought that the Earth as an entire must be regarded as a living organism and that biological procedures stabilize the atmosphere.
What do you mean by the term density? Briefly explain it.
State is it possible that the nucleus consists of negative mass defect?
Lux: lx: The derived SI unit of the illuminance equivalent to the illuminance generated by a luminous flux of 1 lm distributed consistently over a region of 1 m2; it therefore has units of lm/m2.
Hawking temperature: The temperature of a black hole is caused by the emission of the hawking radiation. For a black hole with mass m, it is illustrated as: T = (hbar c3)/(8 pi G k m).
What do you mean by the term crest? Briefly illustrate it.
Eddington limit (Sir A. Eddington): The hypothetical limit at which the photon pressure would surpass the gravitational attraction of a light-emitting body. That is, a body emanating radiation at bigger than the Eddington limit would
18,76,764
1926181 Asked
3,689
Active Tutors
1459322
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!