1.According to the Bohr theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon?a.n=6n = 6n=6 to n=1n = 1n=1b.n=5n = 5n=5 to n=4n = 4n=4c.n=6n = 6n=6 to n=5n = 5n=5d.n=5n = 5n=5 to n=3n = 3n=3Login to continueOnly logged in users canattempt or see the solution.