Given figure shows few data points in a photo electric effect experiment for a certain metal. The minimum energy for ejection of electron from its surface is: (Plancks constant h = 6.62 * 10?³? J.s )
Given figure shows few data points in a photo electric effect experiment for a certain metal. The minimum energy for ejection of electron from its surface is: (Plancks constant h = 6.62 * 10?³? J.s )
Option 1 - <p>1.93eV</p>
Option 2 - <p>2.10eV</p>
Option 3 - <p>2.59eV</p>
Option 4 - <p>2.27eV</p>
5 Views|Posted 5 months ago
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5 months ago
Correct Option - 4
Detailed Solution:
eVs = hv – φ
At Vs = 0 ⇒ hv = φ
⇒ φ = [6.62 * 10?³?][10¹?][5.5]
⇒ φ = ([6.62 * 10?³?][10¹?][5.5]eV) / [1.6 * 10?¹?]
= 2.27
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