Modern Physics> The thresholdwavelength for photoelectric...

The thresholdwavelength for photoelectric emission from a material is 4800 A . Photoelectrons will be emitted when this material is illuminated with monochromatic radiation from:
(1) 40W blue lamp 2) 40W green lamp

(3) 100W red lamp (4)100W yellow lamp

moidin afsan , 11 Years ago

Grade 11

1 Answers

Shubham Singh

answer is (1) 40W blue lamp

Last Activity: 11 Years ago

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Modern Physics> The thresholdwavelength for photoelectric...

The thresholdwavelength for photoelectric emission from a material is 4800 A . Photoelectrons will be emitted when this material is illuminated with monochromatic radiation from:(1) 40W blue lamp 2) 40W green lamp (3) 100W red lamp (4)100W yellow lamp

moidin afsan , 11 Years ago

Shubham Singh

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The thresholdwavelength for photoelectric emission from a material is 4800 A . Photoelectrons will be emitted when this material is illuminated with monochromatic radiation from:
(1) 40W blue lamp 2) 40W green lamp

(3) 100W red lamp (4)100W yellow lamp

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