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Q. Why does sun seems flat during sunrise and sunset?
Answer:-
The sun rays have to move through a larger atmospheric distance. The majority of the blue light and shorter wave lengths are removed by scattering. Merely red colour which is least scattered is received by our eyes as well as appear to come from sun. Therefore the appearance of sun at sunset or sunrise looks almost flat.
A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the similar orbit, the second satellite must have a velocity which i
A mild steel ring has a radius of 50mm and a cross-sectional area of 400mm 2 . A current of 0.5 A flows in a coil wound uniformly around the ring and the flux formed is 0.1mWb
Explain the Maxwell's equation in electromagnetism connecting magnetic field vector and electric displacement vector.
A well-insulated electric water heater warms 109 kg of water from 20.0°C to 49.0°C in 25.0 min. Find the resistance of its heating element, which is connected across a 240-V potent
Visible Radiation (Waves): Visible waves have a wavelength range among 400 and 700 nanometre.
Explain magnetic bearing The horizontal angle among the line and magnetic meridian passing through one of the extremities of the line is known as magnetic bearing.
1.A=the set of whole numbers less tan 4 ? 2.B=the set of prime numbers less than 19 ? 3.C=the set of first three days of week?
is it the current or the voltage which is responsible for electrc shock?
Q. Explain Rayleigh's criterion of just resolution of two spectral lines of equal intensities giving suitable intensity distribution carves. Show how the resolving power of a pla
Explain the Prisms, Dispersion and Color A ray of white light that passes through a prism is dispersed into the visible spectrum. Red light is refracted the least, and purple lig
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