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The ratio of energies of photons with wa...

The ratio of energies of photons with wavelengths `2000A^(0)` and `4000A^(0)` is

A

`1:4`

B

`4:1`

C

`1:2`

D

`2:1`

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Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-ATOMIC STRUCTURE-Objective Exericse - 2A
  1. Which of the following statements is incorrect ?

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  2. Energy equal to the mass of one electrons is

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  3. The ratio of energies of photons with wavelengths 2000A^(0) and 4000A^...

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  4. The energy of an electromagnetic radiation is 3 xx 10^(-12) ergs. What...

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  5. Which of the following statements regarding spectral series is correct...

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  6. According to the Moseley's law, the frequency of a spectral line in X-...

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  7. In a series in the line spectrum of hydrogen the wavelength of radiati...

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  8. The frequency of the spectral line obtained when the electron in n = 3...

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  9. Assertion (A) : The energy of ultraviolet radiation is greater than th...

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  10. The wavelength of the first member of the Balmer series in hydrogen sp...

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  11. Which of the following transitions will have minimum wavelength ?

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  12. The ratio of wavelength values of series limit lines (n(2) = oo) of Ba...

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  13. The minimum and maximum values of wavelength in the Lyman series of a ...

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  14. Which of the following transitions of an electron in hydrogen atom emi...

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  15. In a hydrogen atom the electron and proton are at a distance of 0.5 Å....

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  16. The total energy of electron in an atom is a combination of potential ...

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  17. The radius of which of the following orbit is same as that of the firs...

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  18. An electron in the ground state of hydrogen atom is revolving in anti ...

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  19. The change in velocity when electron jumps from the first orbit to the...

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  20. Which one of the following statements is not correct ?

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