According to Bohr’s atomic theory:
a) Kinetic energy of electron is directly proportional to Z²
b) The velocity (v) of electron is directly proportional to principal quantum number (n)
c) Frequency of revolution of electron in an orbit is directly proportional to principal quantum number(n)
d) Coulombic force of attraction on the electron is directly proportional to Z³
Choose the most appropriate answer from the options given below:

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(A) only

(A) and (D) only

(A), (C) & (D) only

answer is C.

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Detailed Solution

$(A) : K E α \frac{z^{2}}{n^{2}} (B) s p e e d o f e l e c t r o n α \frac{z}{n} (C) F r e e q u e n c y o f e l e c t r o n α α \frac{z^{2}}{n^{3}} (D) C o u l o m b i c f o r c e s α \frac{z^{3}}{n^{4}}$

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