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A single electron orbits around a statio...

A single electron orbits around a stationary nucleus of charge `+Ze`, where Z is a constant and e is the electronic charge. It requires `47.2 eV` to excited the electron from the second Bohr orbit to the third Bohr orbit. Find (i) the value of Z, (ii) the energy required to excite the electron from the third to the fourth Bohr orbit and (iii) the wavelength of the electromagnetic radiation radiation to remove the electron from the first Bohr orbit to infinity.

A

`2.25 xx 10 ^(-12) erg `

B

` 11xx 10 ^(-12) erg`

C

`5.5 xx 10 ^(-10 erg`

D

`27.2 xx 10 ^(-11) erg`

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The correct Answer is:
C
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