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A certain metallic surface is illuminated with monochromatic light of wavelength λ. The stopping potential for photoelectric current for this light is 3V₀. If the same surface is illuminated with light of wavelength 2λ, the stopping potential is V₀. The threshold wavelength for this surface for photoelectric effect is
Options
(a) 6λ
(b) 4λ
(c) λ/4
(d) λ/6
Correct Answer:
4λ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Six molecules have speeds 2 units, 5 units, 3 units, 6 units, 3 units and 5 units
- The coefficient of friction between the tyres and the road is 0.25. The maximum speed
- Two beams of light having intensities I and 4I interfere to produce a fringe pattern
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
- Two resistances 3Ω and 6Ω are connected in parallel
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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