JEE PYQ: Atomic Structure Question 39
Question 39 - 2019 (09 Jan Shift 2)
Which combination of statements is true regarding atomic orbitals?
(a) Higher angular momentum electron stays away from nucleus (b) For given n, orbit size is inversely proportional to azimuthal quantum number (c) Ground state angular momentum equals $h/2\pi$ in wave mechanics (d) Plot of $\psi$ vs r shows peak shifting towards higher r for higher $\ell$
(1). ((a), (d))
(2). ((a), (b))
(3). ((a), (c))
(4). ((b), (c))
Show Answer
Answer: (1)
Solution
(a) and (d) are correct. (b) is incorrect – size depends on n, not inversely on $\ell$. (c) is incorrect – ground state angular momentum is 0 in wave mechanics.
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