Question about light intensity and resistance

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SUMMARY

This discussion focuses on designing a laboratory experiment using a Light Dependent Resistor (LDR) to measure light intensity as it varies with wavelength. The experiment involves using diffraction gratings to separate light into different wavelengths. The key challenge presented is obtaining a quantitative measure of light intensity from the LDR. Understanding the specifications of the LDR is crucial for accurate measurements.

PREREQUISITES
  • Understanding of Light Dependent Resistors (LDRs)
  • Knowledge of diffraction gratings and their application in optics
  • Familiarity with laboratory experiment design in physics
  • Ability to interpret technical specifications of electronic components
NEXT STEPS
  • Research how to calibrate an LDR for accurate light intensity measurements
  • Learn about the relationship between resistance and light intensity in LDRs
  • Explore the use of diffraction gratings in wavelength separation
  • Investigate data acquisition methods for recording LDR outputs
USEFUL FOR

Physics students, educators designing laboratory experiments, and anyone interested in optical measurements and sensor technology.

jimbobjb
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Homework Statement


For my physics coursework, I have to design a laboratory experiment using an LDR to investigate how intensity of light emitted from a lamp varies with wavelength. In the procedure I will use diffraction gratings to separate light into wavelengths. The problem I am having is "How a measure of light intensity can be obtained from the LDR" please can anybody show me how to obtain intensity from an LDR.
thanks


Homework Equations





The Attempt at a Solution

 
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Do you know how a typical LDR works? Do you have the spec sheet for the LDR you are using (something like this) ?
 

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