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Emission spectrum of hidrogen is different from emission spectrum of sodium.Why?Ans) Because, in sodium atom there are already many other electrons present in the atom aother than the emisssion electron. There would be other forces too which will come into play. This is not the same as hydrogen atom, which has only one electron.
impure and pure spectrum
A radiation of 500nm is incident on a metal surface whose work function is 3ev.why do we not observe the phenomenon of photoelecric effect? Ans) we do not observe the phenomenon
A quarter of a wavelength is equal to how many degrees of phase? A quarter of wavelength is equaivalent to 90 degrees of phase.
explain specific latent heat of fusion with formula
A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring? Ans: A certain spr
A ray of white light in air passes by a glass plate. Refraction takes place. The direction in which the light is travelling changes. For what colour of light is the alteration in d
State the uses of Zinc sulphide Zinc sulphide has a lattice constant of 0.596nm . The sulfide ions are quite big (atomic radius 184 pm) relative to the size of the zinc ions (7
to demonstrate the electrostatic shielding
Explain the Resonance of Sound in Strings Strings on musical instruments, like harps, are held still at both ends, that is why the standing waves have nodes at every end of the
Why are some flashlights brighter than others?
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