How Can You Measure Light Intensity Variation with Wavelength Using an LDR?

[question2007]

Homework Statement

Design a lab experiment using a LDR to investigate how the intensity of light emmited by a lamp varies with wavelength

Homework Equations

how the wavelength of the light falling in the LDR is determined
how a measure of the intensity can be obtained from the LDR
factors to be controlled to ensure it's a fair test, safety precautions and particular features to ensure accuracy and reliability

The Attempt at a Solution

 

[Kurdt]

Welcome to the forums! You must make some attempt at the problem yourself before we can help you. What ideas do you have about the experiment? For example how can you select different wavelengths from a lamp and what is it about the LDR that could be used to measure intensity?

 

[01kij114]

i could use a polaroid disc to measure the wavelength

 

[Mentz114]

Have a look here -
https://www.physicsforums.com/showthread.php?t=163562