Inverse Square Law Kit, D1-1000.10, £9.65
The parts for carrying out the Inverse Square Law experiment are :
12V, 2.2W bulb and holder
Guide with mounted ruler
Black card - for reducing reflections from the ruler.
Light sensor is not included.
The photograph shows the above parts in use.
Spare 12V, 2.2W bulb, D1-1000.15, £0.20
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