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A 25 watt bulb emits monochromatic yello...

A 25 watt bulb emits monochromatic yellow light of wavelength of '0.57 mu . m .' Calculate the rate of emission of quanta per second.

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V PUBLICATION-STRUCTURE OF ATOM-QUESTION BANK
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  7. What is the maximum number of emission lines when the excited electron...

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  11. Calculate the energy required to remove an electron completely from n ...

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  13. The mass of an electron is 9.1xx10^(-31) kg. If its K.E.is 3.0xx10^(-2...

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  14. Which of the following are isoelectronic species? Na^(+) , K^(+), Mg...

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  15. i. Write the electronic configuration of the following ions: (a) 'H^-'...

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  16. What is the lowest value of 'n' that allows 'g' orbitals to exist?

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  17. An electron is in one of the '3 d' orbitals. Give the possible values ...

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  18. An atom of an element contains 29 electrons and 35 neutrons. Deduce (i...

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  19. Give the number of electrons in thé species 'H2^+, H2' and 'O2^+'.

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