Question

✓ Calculate the radius of Bohr's 2nd orbit for hydrogen atom.



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Answer 1

Answer:

76 A˚ B.

529 A˚ C.

12 A˚ D.

65 A˚ Medium. Video Explanation. Answer. Correct option is. C.

12 A˚ r=4π2me2kn2h2 r=4×(3. 1416)2×9. 1091×10−31kg×(1. 60210×10−19C)2×9×10922(6. 6262×10−34Js)2 r=2. 12×10−10m. r=2. 12 A˚ Hence, the option (C) is the correct answer.

Answer 2

Your Answer;

We know, radius of Bohr's orbit in an atom is given by,

$r = \frac{{n}^{2} }{Z} \times \frac{ {h}^{2} }{4 {\pi}^{2} {e}^{2}m }$

where Z is atomic number, h is the Phlank's constant, e the charge over electron, and m the mass of electron.

Radius of first shell of hydrogen atom

$r_1= \frac{{l}^{2} }{l} \times \frac{ {h}^{2} }{4 {\pi}^{2} {e}^{2}m }$

→ Next Part is in the pic!

#Refer to the Attachment!

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