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CBSE Class 12-science Answered

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Asked by jain.pradeep | 25 May, 2019, 04:12: PM
answered-by-expert Expert Answer
Frequency of green light is less than frequency of orange light. Hence incident photon energy is decreased

Equation of photo-electric effect is  (1/2)mv2 = hν - w
 
where   (1/2)mv2 is kinetic energy of photo-electron, hν is photon energy and w is work function of material
 
Workfunction w of the photo-sensitive material is constant. Hence maximum kinetic energy of electron decreased.
 
Hence answer is  (C) I  and II only
Answered by Thiyagarajan K | 25 May, 2019, 06:15: PM

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