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

Show gastrointestinal diseases and disorders, Q. Show Gastrointestinal Dise...

Q. Show Gastrointestinal Diseases and Disorders? Before discussing the many gastrointestinal problems, it is useful to understand the basic physiology of the gastrointestinal t

Define mineralizations and formation of new bone, Define Mineralizations an...

Define Mineralizations and formation of new bone? Vitamin D plays a role in the synthesis of a prominent non collage nous protein, osteocalcin, a vitamin K- dependent protein f

Explain the clinical features of ps and vsd, Explain the Clinical Features ...

Explain the Clinical Features of PS and VSD ? Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Hair, how many hair are there on head

how many hair are there on head

Explain the urinary excretion test - riboflavin status, Explain the Urinary...

Explain the Urinary Excretion Test - riboflavin status? Urinary excretion of riboflavin is determined at different levels of intake. Under conditions of adequate riboflavin int

What mechanisms would na and water be secreted, When William was helping vi...

When William was helping victims following a devastating earthquake in a region that was not prepared to swiftly set up adequate temporary shelter, he developed severe diarrhea. He

Coelenterata, give outline classification of coelenterata

give outline classification of coelenterata

What are the frequencies of the s, Platinum color in foxes is produced by h...

Platinum color in foxes is produced by heterozygous genotype Ss, and silver foxes are the genotype SS. The genotype ss is lethal, and the fox dies in early embryonic development. I

Saprophetic mode of nutrition , how parasitic protozoans exibit saprophtic ...

how parasitic protozoans exibit saprophtic mode of nutrition

Measure to be taken in the event of tsunami, ·          If we are in danger...

·          If we are in dangerous areas, water, gas and electricity should be turned off quickly and we should move to a higher level of ground.                  ·          It s

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