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Apparatus for Determining Planck's Constant

USA

1992 / Piece Get Latest Price

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1 Piece

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10 Piece per Month

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タイトルまたは説明

 

This LEAI-52 experimental apparatus for determining Planck's constant is used to demonstrate the photoelectric effect, measure the characteristic curve of a photoelectric tube, verify the existence of "red limit" frequency, and calculate the Planck’s constant according to the Einstein’s equation of photoelectric effect. It is an ideal teaching apparatus for physics laboratories in colleges and universities.

    
Specifications
Wavelength of filters 365 nm, 405 nm, 436 nm, 546 nm, 577 nm
Light source 50 W Mercury lamp
Sensor

Vacuum phototube; wavelength range 340 ~ 700 nm

Cathode sensitivity ≥1 µA (-2 V≤UKA≤0 V)
Anode dark current ≤5×10-12 A (-2 V≤UKA≤0 V)
Current measurement range 10-7 ~ 10-13 A, 3-1/2 digit display
Phototube power supply Voltages: I: -2 ~ +2 V; II: -2 ~ +20 V, 3-1/2 digit display, stability ≤0.1 %
Zero drift < ±0.2% of full scale (for scale 10-13 A) within 30 minutes after warm-up
Measurement method Zero current method and compensation method
Measurement error 3%
Apparatus for Determining Planck's Constant

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連絡先担当者:Mr. James

会社:Lambda Scientific Systems, Inc.

住所:16300 SW 137th Ave, Miami, Florida,33177

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Mr. James < Lambda Scientific Systems, Inc. >
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Lambda Scientific Systems, Inc.

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