Photometer-radiation instrument, Biology

Assignment Help:

Photometer

Photometer (Figure shown below) measures the intensity of light. The metallic plate A is a photocell which emits electrons from its surface when light of sufficient frequency impinges Wpon it. The emission of electrons emerging from the irradiated surface constitute the current. This current is measured by a sensitive ammeter which is calibrated to give the amount of current generated as the value of light intensity in metre candle.

504_photometer.jpg


Related Discussions:- Photometer-radiation instrument

Operative requirements for stage i surgery, Operative requirements for stag...

Operative requirements for stage i surgery Although Implant placement under general anesthesia must be done in an operating theatre with complete resources, most implant surger

Eye - conjuctiva, CONJUNCTI V A - Ectodermal in origin. Formed by epi...

CONJUNCTI V A - Ectodermal in origin. Formed by epidermis. It is thin, transparent covers cornea. Made up of stratified epithelium. It has 2 parts - (i) Ocular conjunct

What is radioactivity , What is Radioactivity ? Radioactivity :  Som...

What is Radioactivity ? Radioactivity :  Some isotopes, called radioisotopes, have unstable nuclei that release high energy particles or radiant energy, or both. An example

Define the role of riboflavin in antioxidant activity, Define the role of r...

Define the role of riboflavin in Antioxidant Activity? Flavoproteins also have powerful antioxidant activity from their role as precursors to FMN and FAD. Among the FAD-requiri

Determine about the brain tissue, Determine about the Brain tissue Bra...

Determine about the Brain tissue Brain tissue looks solid to the naked eye (it has a consistency of stiff jelly), so 'finger-grain' investigations had to await two technologic

What is the significance of proteins for living beings, What is the signifi...

What is the significance of proteins for living beings? Proteins play a fundamental role in nearly all biological processes. Because of their diversity they can assume many dif

Initiation of development - development biology, Initiation of Development ...

Initiation of Development - Development Biology We know that the various events collectively called the activation programme. These events are directly related to the formatio

What is rate of photosynthesis in c3 plants, What would happen to the rate ...

What would happen to the rate of photosynthesis in C3 plants if the CO2 concentration level almost doubles from its present level in the atmosphere?

What is..., What is antistaphylococcal prophylaxis and pseudomonas aerugino...

What is antistaphylococcal prophylaxis and pseudomonas aeruginosa? I''m doing a project on cystic fibrosis, and I''m curious what these terms have to do with the disease. Thanks!

Biotechnology, How does bisulfite sequencing work ?

How does bisulfite sequencing work ?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd