Question Detail

PHY 104 Photo Electric Emission Objective Question
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Question

The document shows a graph of Stopping Voltage (V-stop) versus frequency (f). What physical constant is represented by the slope of this graph?
Options
A The speed of light (c)
B The charge of an electron (e)
C Planck's constant (h) divided by the charge of an electron (e) (h/e)
Correct Answer
D The work function (W) divided by the charge of an electron (e) (W/e)
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 5 states, 'From Einstein's equation... Vstop = (h/e)f - W/e] have a slope of (h/e)'.

Hint

Rearrange Einstein's photoelectric equation (hf = W + eVstop) to solve for Vstop, then identify the coefficient of 'f'.

Question Info

Course: PHY 104
Topic: Photo Electric Emission
Type: Objective
Difficulty: Not specified
Question 186 of 947
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