Question

Question 7 [7] A student performing the Photoelectric effect experiment obtained the following data while investigating the influence of the intensity and frequency of light on the stopping potential: Frequency Transmission % Stopping potential (V) 5.48996 \times 10^{14} Hz (Green) 100 0.76 80 0.76 60 0.75 40 0.76 20 0.75 6.87858 \times 10^{14} Hz (Blue) 100 1.49 80 1.48 60 1.47 40 1.49 20 1.48 a) What do these measurements demonstrate? b) What does this prove about the nature of light? Motivate your answer. (3) (4)

          Question 7
[7]
A student performing the Photoelectric effect experiment obtained the following data while
investigating the influence of the intensity and frequency of light on the stopping potential:
Frequency	Transmission %	Stopping potential (V)
5.48996 \times 10^{14} Hz (Green)	100	0.76
	80	0.76
	60	0.75
	40	0.76
	20	0.75
6.87858 \times 10^{14} Hz (Blue)	100	1.49
	80	1.48
	60	1.47
	40	1.49
	20	1.48
a) What do these measurements demonstrate?
b) What does this prove about the nature of light? Motivate your answer.
(3)
(4)

Question 7
[7]
A student performing the Photoelectric effect experiment obtained the following data while
investigating the influence of the intensity and frequency of light on the stopping potential:
Frequency Transmission % Stopping potential (V)
5.48996 ×10^14 Hz (Green) 100 0.76
80 0.76
60 0.75
40 0.76
20 0.75
6.87858 ×10^14 Hz (Blue) 100 1.49
80 1.48
60 1.47
40 1.49
20 1.48
a) What do these measurements demonstrate?
b) What does this prove about the nature of light? Motivate your answer.
(3)
(4)

Added by Deanna S.

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