Define Mach number
Mach number (E. Mach): It is the ratio of the speed of an object in a specified medium to the speed of sound in that medium.
Candela: The basic SI unit of luminous intensity stated as the luminous intensity in a given direction of a source which emits monochromatic photons of frequency 540 x 1012 Hz and encompasses a radiant intensity in the direction of 1/683 W/
Explain laws of black-hole dynamics or First law of black hole dynamics and Second law of black hole dynamics? Q : Why electron and proton encompass Explain in short why electron and proton encompass similar charge while the proton is 1836 times heavier?
Explain in short why electron and proton encompass similar charge while the proton is 1836 times heavier?
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
Cadmium rods are given in a nuclear reactor. Explain why?
Explain Ampere's law? Ampere's law (A.M. Ampere):
What do you mean by the term wave fronts? Explain in short.
Huygens' construction: Huygens ‘Principle (C. Huygens): The mechanical propagation of the wave (specially, of light) is equal to supposing that every point on the wave front acts as a point source of the wave emission.
Briefly state how does the elevation and air pressure affects the boiling point of water?
Rydberg constant (Rydberg): The constant that governs the relationship of the spectral line features of an atom via the Rydberg formula. For hydrogen, it is around 1.097 x 107 m-1.
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