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JEE Main levelNumerical answerDifficulty 2 of 3as140

Find the magnitude of the orbital angular momentum of an electron in a d orbital in units of $1 0^{- 34} J s$ , to two decimals. Use $h = 6.626 \times 1 0^{- 34} J s$ and $π = 3.1416$ .

Numerical answer type, answer in 1e-34 J s, tolerance 0.02.

Answer: 2.58 1e-34 J s

L = l (l + 1) h /2 π

with

l = 2

gives

6 \times 6.626 \times 1 0^{- 34} / (2 π) = 2.5831 \times 1 0^{- 34} J s

.

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