Question 2 of 200
The slope of stopping potential versus frequency graph for photoelectric effect gives:
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Answer: (C)
. Slope .
Dual Nature of Matter
NEET level, single correct, medium
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- Dual Nature of MatterWhen radiation of wavelength falls on a metal, stopping potential is . When wavelength is , stopping potential is . The threshold wavelength is:
- Dual Nature of MatterIn a photoelectric experiment, graph of stopping potential versus frequency has slope equal to:
- Dual Nature of MatterAn oil drop of the radius with a density is held stationary under a constant electric field in the Millikan's oil drop experiment. What is the number of excess electrons that the oil drop will possess? .
- Dual Nature of MatterThe de Broglie wavelength for an electron accelerated through the potential difference of volt is . When the potential difference is changed to volt, the associated de Broglie wavelength is increased by . If , then the value of is __________.
- Dual Nature of MatterAn electron is travelling with a velocity in free space and when it enters a medium, its velocity is reduced by . The de Broglie wavelength of electron in the medium is , where is its de Broglie wavelength in free space. The value of is _______.
- Dual Nature of MatterAn electron of mass is moving in an electric field ( constant ), with an initial velocity ( constant ). If , its de Broglie wavelength at time is __________.
( charge of electron)
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