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Q.

The Bohr’s energy equation for H atom reveals that the energy level of a shell is given by $E = - 13.58 / n^{2} e V$ .The smallest amount that an H atom will absorb if in ground state is

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a

1.0eV

b

3.39eV

c

6.79eV

d

10.19eV

answer is D.

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Detailed Solution

The smallest value of energy of an electron in H atom in ground state can absorb is = $E_{2} - E_{1}$

$= \frac{13.58}{4} = (\frac{- 13.58}{1}) = 10.19$

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