-- 4. The radius of second orbit of an electron in hydrogen ... — Physics | Mockzy | Mockzy

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-- 4. The radius of second orbit of an electron in hydrogen atom is 2.116 Å. The de-Broglie wavelength associated with this electron in this orbit would be

A

6.64 Å

B

2.116 Å

C

3.32 Å

D

13.28 Å

-- 3. When an electron in the hydrogen atom in ground state absorbs a photon of

-- 5. The wavelength of the first spectral line in the Balmer series of hydrogen

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