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Why are electrons revolving around the n...

Why are electrons revolving around the nucleus?

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What provides the centripetal force in the following cases electron revolving around the nucleus

An atom has mass number A and atomic number Z.) How many electrons are revolving around the nucleus ?

Calculate the speed of the electron revolving around the nucleus of a hydrogen atom in order that it may not be pulled into the nuclues by electrostatic attraction.

Show that Bohr's second postulate 'the electron revolves around the nucleus only in certain fixed orbits without radiating energy can be explained on the basis of de-Broglie hypothesis of wave nature of electron.

Estimate the ratio of the wavelength associated with the electron orbiting around the nucleus in the ground and first excited state of hydrogen atom.

In hydrogen atom, electron revolves around the nucelus along a path of radius 0.51overset(@)A making 6.8 xx 10^15 revolutions per second. Calculate the equivalent current. Given that charge on electrno =1.6 xx 10^-19C

Show that circumference of the Bohr orbit for the hydrogen atom is an integral multiple of the de-Broglie wavelength associated with the electron revolving around the orbit.

MODERN PUBLICATION-Dynamics of Circular Motion-Exercise
  1. What provides the centripetal force to a satellite revolving around th...

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  2. What provides the centripetal force to a satellite revolving around th...

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  3. Why are electrons revolving around the nucleus?

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  4. For uniform circular motion,does the direction of the centripetal forc...

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  5. Can centripetal force produce rotation?

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  6. What provides the centripetal force to a caar taking turn on a level r...

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  7. If, in Exercise 5.21, the speed of the stone is increased beyond the m...

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  8. What will be the maximum velocity with which a vehicle can negotiate a...

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  9. Moon is continuously revolving round the earth without falling towards...

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  10. What happens to a stone tied to the end of a string and whirled in a c...

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  11. One often comes across the following kind of statement concerning circ...

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  12. Why a person sitting inside a vehicle is thrown outwards, when vechile...

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  13. Why a person sitting inside a vehicle is thrown outwards, when vechile...

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  14. Why does a child in a merry - go - round press the side of his seat rd...

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  15. A car is taking a sudden turn to the left. A passenger in the front se...

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  16. The outer rail of a curved railway track is generally raised over the ...

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  17. Why does a cyclist lean to one side while going along a curve? In whic...

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  18. Why does a cyclist lean to one side while going along a curve? In whic...

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  19. A bucket containing water is rotated in a vertical circle. Explain why...

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  20. Explain, why the pilot of the aeroplane does not fall down, while loop...

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