JEE PYQ: Atomic Structure Question 44
Question 44 - 2019 (12 Jan Shift 1)
If the de Broglie wavelength of electron in n$^{th}$ Bohr orbit in a hydrogenic atom is equal to $1.5\pi a_0$, then the value of n/z is:
(1). (0.40)
(2). (1.50)
(3). (1.0)
(4). (0.75)
Show Answer
Answer: (4)
Solution
$\lambda = \frac{2\pi a_0 n}{Z}$. $1.5\pi a_0 = \frac{2\pi a_0 n}{Z}$. $\frac{n}{Z} = 0.75$.