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Two metals X and Y have work functions 2...

Two metals X and Y have work functions 2eV and 5eV respectively. Which metal will emit electrons, when it is irradiated with light of wavelength 400 nm and why?

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BINA LIBRARY-DUAL NATURE OF MATTER AND RADIATION-EXERCISE
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  2. Explain why radio waves can not produce photoelectrons from metals, wh...

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  3. Two metals X and Y have work functions 2eV and 5eV respectively. Which...

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  4. Which surface have more friction – rough or smooth ? Why ?

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  5. Give two examples where rolling friction is utilized

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  6. Why are de - Broglie waves associated with a moving football not visib...

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  7. An electron, alphaparticle and proton have the same kinetic energy .Wh...

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  8. An electron, alphaparticle and proton have the same de- Broglie wavele...

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  9. An electron, alphaparticle and proton have the same de- Broglie wavele...

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  10. An electron of mass m anc charge e initially at rest is accelerated by...

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  11. Name the two factors in which the magnitude of frictional force depend...

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  12. An electron and a proton are having same kinetic energy. Which of them...

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  13. A photon and an electron have the same de Broglie wavelength. Which ha...

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  14. Explain why rainbow is never seen on the surface of the moon.

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  15. The maximum kinetic energy of photoelectrons emitted from a surface wh...

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  16. Define lens.

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  17. The work function of caesium is 2.14 eV . Find Threshold frequency fo...

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  18. The work function of caesium is 2.14 eV . Find The wavelength of inci...

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  19. For what kinetic energy of a neutron will the associated de - Broglie ...

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  20. Calculate the Momentum of the electrons accelerated through a potentia...

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