Assertion (A) Hydrogen atom consists of only one electron but its emission spectrum has many lines. Reason (R) Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.

Question

Assertion (A) Hydrogen atom consists of only one electron but its emission spectrum has many lines. Reason (R) Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found. (A) Both assertion and reason are true and reason is the correct explanation of assertion (B) Both assertion and reason are true but reason is not the correct explanation of assertion (C) Assertion is true but reason is false (D) Both assertion and reason are false

Tardigrade Admin · Accepted Answer

When the atom gets appropriate energy from outside, then this electron rises to some higher energy level. Now, it can return either directly to the lower energy level or come to the lowest energy levels, hence all possible transitions take place in the source and many lines are seen in the spectrum.

Q. Assertion (A) Hydrogen atom consists of only one electron but its emission spectrum has many lines. Reason (R) Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.

Both assertion and reason are true and reason is the correct explanation of assertion

Both assertion and reason are true but reason is not the correct explanation of assertion

Assertion is true but reason is false

Both assertion and reason are false

Q. Assertion (A) Hydrogen atom consists of only one electron but its emission spectrum has many lines.
Reason (R) Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.