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The anode voltage of photocellis kept fi...

The anode voltage of photocellis kept fixed. The wavelength `lambda` of the light falling on the cathode is gradually changed. The plate current `I` of the photocell varies as follows:

A

B

C

D

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Two identical metal plates show photoelectric effect. Light of wavelength lamda_A falls on plate A and lamda_B fall on plate B lama_A=2lamda_B , The maximum KE of the photoelectrons are K_A and K_B , respectively, Which one of the following is true?

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NARAYNA-DUAL NATURE OF RADIATION AND MATTER-EXERCISE - 4
  1. A source of light is placed above a sphere of radius 10cm. How many ph...

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  2. From the above figure the values of stopping potentials for M(1) and M...

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  3. For certain photosensitive material, a stopping potential of 3.0 V is ...

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  4. Light of wavelength 180 nm ejects photoelectrons from a plate of met...

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  5. Light described at a place by the equation E = (100V//m) xx [sin (5 xx...

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  6. The electric field associated with a light wave is given by E=E(0)sin[...

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  7. An electron of mass m and charge e initially at rest gets accelerated ...

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  8. A praticle of mass M at rest decays into two particle of masses m1 and...

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  9. A photon and an electron have equal energy E . lambda("photon")//lambd...

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  10. When a monochromatic point source of light is at a distance of 0.2 m...

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  11. An X-ray tube is operated at 50 kV and 20 m A. The target material of ...

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  12. The potential energy of a particle of mass m is given by V(x) = E0 w...

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

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  14. Which of the following figure represents the variation of particle mom...

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  15. The de Broglie wave present in fifth Bohr orbit is:

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  16. The graph shown in figure show the variation of photoelectric current ...

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  17. The anode voltage of photocellis kept fixed. The wavelength lambda of ...

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  18. The two lines A and B shown in figure are the graphs of the de Broglie...

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  19. A graph regarding photoelectric effect is shwon between the maximum ki...

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  20. Name the experiment for which the adjacent graph, showing the variatio...

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