Question:
Two beams (3.3 eV and 11.3 eV) illuminate a metal (work function 2.3 eV). Find the ratio of maximum electron speeds.
Two beams (3.3 eV and 11.3 eV) illuminate a metal (work function 2.3 eV). Find the ratio of maximum electron speeds.
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K_max and speed relationship
Updated On: Feb 16, 2025
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The Correct Option is C
Solution and Explanation
K_max = hν - Φ. K_max,A = 1 eV, K_max,B = 9 eV. v ∝ √K_max. v_A/v_B = √(1/9) = 1/3.
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