AS Physics Practical help

question2007

1. The problem statement, all variables and given/known data
Design a lab experiment using a LDR to investigate how the intensity of light emmited by a lamp varies with wavelength



2. Relevant 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

3. 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 -
http://www.physicsforums.com/showthread.php?t=163562