21. (A): In an atom the velocity of electron as it moves into higher orbits keeps on decreasing
(R): Velocity of electron is inversely proportional to the radius of orbit
1) Both (A) and (R) are true and (R) is the correct explanation of (A)
2) Both (A) and (R) are true and (R) is not the correct explanation of (A)
3) (A) is true but (R) is false
4) (A) is false but (R) is true
22. The wavelength of radiation required
Answers
Answered by
1
Answer:
(1) is right
Explanation:
both a and r is true
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