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A Stopping Potential of 0

Question 23

Multiple Choice

A stopping potential of 0.50 V is required when a phototube is illuminated with monochromatic light of wavelength 590 nm.Monochromatic light of a different wavelength is now shown on the tube,and the stopping potential is measured to be 2.30 V.What is the wavelength of this new light? (c = 3.00 × 108 m/s, A stopping potential of 0.50 V is required when a phototube is illuminated with monochromatic light of wavelength 590 nm.Monochromatic light of a different wavelength is now shown on the tube,and the stopping potential is measured to be 2.30 V.What is the wavelength of this new light? (c = 3.00 × 10<sup>8</sup> m/s, , ,1 eV = 1.60 × 10<sup>-19</sup> J) A) 320 nm B) 300 nm C) 340 nm D) 360 nm E) 410 nm , A stopping potential of 0.50 V is required when a phototube is illuminated with monochromatic light of wavelength 590 nm.Monochromatic light of a different wavelength is now shown on the tube,and the stopping potential is measured to be 2.30 V.What is the wavelength of this new light? (c = 3.00 × 10<sup>8</sup> m/s, , ,1 eV = 1.60 × 10<sup>-19</sup> J) A) 320 nm B) 300 nm C) 340 nm D) 360 nm E) 410 nm ,1 eV = 1.60 × 10-19 J)


A) 320 nm
B) 300 nm
C) 340 nm
D) 360 nm
E) 410 nm

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