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(i) It having of dissimilar bright lines.
(ii) It is given by an excited source in atomic state.
(iii)E.g. Spectrum of excited helium, mercury vapours sodium vapours or atomic hydrogen.
what is the physical significance of damping coefficient?
Na + ion is isoelectronic with: (1) Li + (2) Mg +2 (3) Ca +2 (4) Ba +2 Ans:(b) Mg +2
Can the batteries used in the torch lights be recharged after their discharge? Give reason? Ans) No,because the NH4Cl corrods the zn containger gradually.so with out anode redox
Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What important conclusion was drawn from this experi
.In order to deposit films of the alloy YBa2Cu3, the metals Y, Ba, and Cu are evaporated from three point sources. The latter are situated at the corners of an equilateral triangle
Explain Antenna. Write a short note or Antenna. Name two parts of antenna.
In Bohr's theory of the atom, what force was responsible for holding the electrons in their orbit? Ans: Coulomb force or the force of attraction among the proton (nucleus) a
Erika is on an elevator and presses the button to go down. When the elevator first begins moving, it has an acceleration of 2.5 m/s 2 downward. Erika and the elevator have
The copper clad laminate manufacturing process is formed in heated press which has highly polished stainless steel press plates. The manufacturing process starts by placing a sheet
what is the histroy of the periodic table
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