China Wholesale Bohr atomic energy Factory – LADP-16 Apparatus for Determining Planck’s Constant – Advanced Model – Labor

Short Description:

LMEC-21 uses steel string and oscilloscope to measure the standing wave and vibration of uniform string, and can expand innovative experiments, this instrument needs self-prepared oscilloscope.
LMEC-21A is a cheaper version which don't need oscilloscope, The purpose of the instrument is to set up interesting string sound experiments. It can not only do the traditional basic string vibration experiment, but also expand to the applied experiment to calibrate the intonation of string instruments and learn the working principle of string instruments.

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China Wholesale Bohr atomic energy Factory – LADP-16 Apparatus for Determining Planck’s Constant – Advanced Model – Labor Detail:

Planck’s Constant Experimental System applies the photoelectric effect to measure the current-voltage (I-V) characteristic curves of a photocathode against monochromatic light at different frequencies.

Experiment Examples

1. Measure I-V characteristic curve of a photoelectric tube

2. Plot U- curves

3. Calculate the follows:

a) Planck’s constant h

b) Cut-off frequency ν of cathode material of a photoelectric tube

c) Work function Ws

d) Verify Einstein’s equation

Specifications

Description	Specifications
Light Source	Tungsten-halogen lamp: 12V/75W
Spectral Range	350~2500nm
Grating monochromator
Wavelength range	200 ~ 800nm
Focal length	100mm
Relative aperture	D/f = 1/5
Grating	1200l/mm (blazed@500nm)
Wavelength accuracy	±3nm
Wavelength repeatability	±1nm
Photoelectric Tube
Working voltage	-2~ 40V continuously adjustable, 3-1/2 digital display
Spectral range	190~700nm
Peak wavelength	400±20nm

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That has a positive and progressive attitude to customer's interest, our organization consistently improves our products quality to satisfy the demands of shoppers and further focuses on safety, reliability, environmental specifications, and innovation of China Wholesale Bohr atomic energy Factory – LADP-16 Apparatus for Determining Planck’s Constant – Advanced Model – Labor , The product will supply to all over the world, such as: Korea, Turkey, Angola, Our company has a skillful sales team, strong economic foundation, great technical force, advanced equipment, complete testing means, and excellent after-sales services. Our items have beautiful appearance, fine workmanship and superior quality and win the unanimous approvals of the customers all over the world.

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The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!

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We have been cooperated with this company for many years, the company always ensure timely delivery ,good quality and correct number, we are good partners.

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