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Calculate mass defect and binding energy of nucleus, given: Mass of Mass of Mass of State the…
(a)
Calculate mass defect and binding energy of ${}^{20}_{10}\text{Ne}$ nucleus, given:
Mass of ${}^{20}_{10}\text{Ne} = 19.992397\text{ u}$
Mass of ${}^1_1\text{H} = 1.007825\text{ u}$
Mass of ${}^1_0\text{n} = 1.008665\text{ u}$
(b)
State the Bohr’s postulate of angular momentum of an electron.
(c)
(1) What is the velocity of an electron in the $3^{\text{rd}}$ orbit of hydrogen atom if its velocity in the $1^{\text{st}}$ orbit is $v_0$?
(2) Radius of the $1^{\text{st}}$ orbit of hydrogen atom is $r_0$. What will be the radius of the $4^{\text{th}}$ orbit?
Answer
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From ISC 2024 Physics Paper 1, question 19(ii).