Experiment:
Inverse Square Law

Experiment:
Inverse Square Law, 8000691 [UE4050100-230], Intensity of Radiation

Voltage:

115V, 50/60 Hz
230V, 50/60 Hz
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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.

Item No.: 8000691 [UE4050100-230]
Brand 3B Scientific
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Delivery scope

Stefan-Boltzmann lamp, 1008523 [U8490050], Light Sources on Stem

Stefan-Boltzmann lamp

1008523 [U8490050]
Unit price
123.00 €
Moll’s Thermopile, 1000824 [U8441301], Heat Flow and Radiation of Heat

Moll’s Thermopile

1000824 [U8441301]
Unit price
330.00 €
DC Power Supply,
0–20 V, 0–5 A, 1003312 [U33020-230], Power Supplies

DC Power Supply,
0–20 V, 0–5 A

1003312 [U33020-230]
Unit price
307.00 €
Digital Multimeter P1035, 1002781 [U11806], Hand-held Digital Measuring Instruments

Digital Multimeter P1035

1002781 [U11806]
Unit price
31.40 €
Graduated Ruler, 1 m, 1000742 [U8401550], Measurement of Length

Graduated Ruler, 1 m

1000742 [U8401550]
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29.60 €
Cylindrical Base, 500 g, 1001046 [U8611210], Tripods and Barrel Feet

Cylindrical Base, 500 g

1001046 [U8611210]
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Safety Connecting Leads, 32 A, 75 cm,
Set of 15 pcs., 1002843 [U138021], Experiment Leads and Cables

Safety Connecting Leads, 32 A, 75 cm,
Set of 15 pcs.

1002843 [U138021]
Unit price
101.00 €
Measuring Amplifier, 1020742 [U8557560-230], Measuring Amplifier

Measuring Amplifier

1020742 [U8557560-230]
Unit price
512.00 €