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From rest an electron is accelerated bet...

From rest an electron is accelerated between two such points which has poteintial 20 `&` 40 volts respectively. Associated de-Broglie wavelength of electron is-

A

0.75 Å

B

7.5 Å

C

2.75 Å

D

2.75 m

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The correct Answer is:
C
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MOTION-MATTER WAVE-EXERCISE 1 (SECTION A : WAVE NATURE OF MATTER , DE-BROGLIE RELATION )
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  2. Velocity of a proton is c/20. Associated de-Broglife wavelenght is (Ta...

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  3. A photon of light enters a block of glass after travelling through vac...

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  4. The energy of analpha -Particle, whose de-broglie wavelength is 0.004 ...

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  5. The energies of an photon and an electron of mass m are same. The rati...

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  6. Two particles of mass m1 and m2 respectively are identically charged ...

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  7. An electron is 2000 times lighter than a proton. An electron and a pro...

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  8. A particle initially at rest having charge q coulomb, & mass m kg i...

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  9. If the momentum of electron is changed by P(m) then the de-Broglie wa...

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  10. The thermal energy of a particle at temperature T^@K is kT, then the ...

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  11. The average thermal energy of neutrons each of mass m at temperature T...

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  12. The de Broglie wavelength associated with a nitrogen molecule at atmos...

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  13. Ratio of wavelength of duetron & proton accelerated by equal potential...

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  14. The de-Broglie wavelength of electron in gound state of an hydrogen at...

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  15. From rest an electron is accelerated between two such points which has...

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  16. An alpha -particle and a singly ionized ""4Be^8 atom are accelerated ...

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  17. The de-Broglie wavelength associated with an electron having a kineti...

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  18. The de-broglie wavelength of the electron in the second Bohr orbit is ...

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  19. The waves associated with electrons revolving in various Bohr orbits i...

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  20. The electron of a H-atom moves in n^(th) orbit. If the length of the ...

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