Prediction questionsquestion 1 what will be the frequency, Ask an Expert

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Prediction Questions

Question 1: What will be the frequency of light emitted by a diode that turns on at 2.1 Volts?

Question 2: Will this be higher or lower that the frequency light emitted by a diode that turns on at 4.5 volts? Will the 2.1 volt diode be bluer or redder?

Question 3: Most diodes turn on at several tenths of a Volt. Why don't we see light from them?

Analysis Questions

Question 1: How does the slope to compare with the accepted value of Planck's constant, 6.626x10-34 Joules.s? Consider the uncertainty of the slope for this comparison.

Question 2: Is the graph reasonably linear?

Report Requirements

1. Objective

2. Theory (one paragraph in your own words)

3. Measurement and uncertainty table

4. Data table, analysis table and graph with LINEST analysis

5. Conclusion

Was your data linear?

How many standard deviations was your result for Planck s constant away from the accepted values?

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