Experiment: Inverse square law (115 V, 50/60 Hz)

Experiment: Inverse square law (115 V, 50/60 Hz), 8000690 [UE4050100-115], Intensity of Radiation
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Objective: Verify the inverse square law for the intensity of radiation from a source of light

According to the inverse square law, the intensity of radiation from a light source, i.e. the power per unit area, is inversely proportional to the square of the distance from the source. This will be investigated in an experiment using an incandescent light bulb. When the distance from the lamp is much greater than the size of the filament, such a bulb can be regarded as a point source of light. In order to measure the relative intensity of the radiation, a Moll thermopile is used.

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Stefan Boltzmann lamp, 1008523 [U8490050], Optical Lamps on Stem

Stefan Boltzmann lamp

1008523 [U8490050]
Unit price
$ 174.00
Thermopile, 1000824 [U8441301], Greenhouse Effect

Thermopile

1000824 [U8441301]
Unit price
$ 374.00
Measurement Amplifier U (115 V, 50/60 Hz), 1020744 [U8557560-115], Measuring Amplifier

Measurement Amplifier U (115 V, 50/60 Hz)

1020744 [U8557560-115]
Unit price
$ 707.00
DC Power Supply 20 V, 5 A (115 V, 50/60 Hz), 1003311 [U33020-115], Power Supplies

DC Power Supply 20 V, 5 A (115 V, 50/60 Hz)

1003311 [U33020-115]
Unit price
$ 394.00
Digital Multimeter P1035, 1002781 [U11806], Hand-held Digital Measuring Instruments

Digital Multimeter P1035

1002781 [U11806]
Unit price
$ 46.00
Ruler, 1 m, 1000742 [U8401550], Measurement of Length

Ruler, 1 m

1000742 [U8401550]
Unit price
$ 33.00
Barrel Foot, 500 g, 1001046 [U8611210], Stands, Clamps and Accessories

Barrel Foot, 500 g

1001046 [U8611210]
Unit price
$ 55.00
Set of 15 Safety Experiment Leads, 75 cm, 1002843 [U138021], Circuits

Set of 15 Safety Experiment Leads, 75 cm

1002843 [U138021]
Unit price
$ 169.00
Item No.: 8000690 [UE4050100-115]
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