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The pressure of colloidal particles of d...

The pressure of colloidal particles of dust in air imparts blue colour to the sky. This is due to

A

absorption of light by atmospheric gases

B

transmission of light

C

wavelength of scattered light

D

all of the above

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NARENDRA AWASTHI-ATOMIC STUCTURE-Exercise
  1. The H-spectrum confirms

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  2. The splitting of spectral lines in an external magnetic field is known...

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  3. The pressure of colloidal particles of dust in air imparts blue colour...

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  4. In photoelectric effect, the number of photoelectrons emitted is propo...

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  5. Slope of V(0) vs v curve is (where V(0)= Stopping potential, v=subject...

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  6. According to Einstein's photoelectric equation, the graph between kine...

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  7. The photoelectric emission from a surface starts only when the light i...

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  8. If lamdao and lamda be the threshold wavelength and wavelength of inci...

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  9. A light source of wavelength lambda illuminates a metal and ejects pho...

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  10. Electronmagnetic radiations having lambda=310Åare subjected to a metal...

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  11. The ratio of slopes of K(max) vs. V and V(0) vs. v curves in the photo...

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  12. Radiation corresponding to the transition n=4 to n=2 in hydrogen atoms...

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  13. Select the incorrect statement.

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  14. Which is the de-Broglie equation?

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  15. Which of the following has the largest de Broglie wavelength (all have...

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  16. The de-Broglie wavelength associated with a particle of mass 10^-6 kg ...

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  17. For two particles A and B, curves are plotted sqrtV against de-Broglie...

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  18. Which of following graphs correctly represents the variation of partic...

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  19. An excited state of H atom emits a photon of wavelength lamda and retu...

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  20. A dye absorbs a photon of wavelength lambda and re- emits the same ene...

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