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

Does the molecule will remain unchanged, A double-stranded piece of DNA, 10...

A double-stranded piece of DNA, 100 base pairs in size, is exposed to a high pH environment. This causes all non-valent interactions to be disrupted. What will result from this tre

How public perception of science has distorted, Give an example of how the ...

Give an example of how the public perception of science has been distorted or manipulated to serve an alternative purpose.

Properties of stem cells-pulp tissue revascularization, Properties of Stem ...

Properties of Stem Cells Stem cells are defined by having 3 major properties: 1) They are capable of self-renewal.  2) They divide, some daughter cells give rise to cells

Medical management of meningitis , Medical Management Trealment of ch...

Medical Management Trealment of choice is cephalosporin which is given interavenously, alternatively can be given. In case of increased intra cranial pressure mannitol and o

Regulation of pfk and fructose 1, When the level of AMP is high, this shows...

When the level of AMP is high, this shows the requirement for more ATP synthesis. AMP stimulates PFK increases the rate of glycolysis and inhibits fructose 1 and 6- bisphosphatase

What is an immunotoxin, Immunotoxin is formed by conjugating or combining a...

Immunotoxin is formed by conjugating or combining an antibody with highly toxic agent.

What is consciousness, The importance of the brain in our everyday lives ca...

The importance of the brain in our everyday lives can never be underestimated. The brain has physical properties that are in a constant state of flux. The brain never rests totally

Assessment of rheumatic fever, Assessment 1. Assess the past and prese...

Assessment 1. Assess the past and present history of illness, sore throat, rheumatic fever and treatment received previously.  2. Family history of rheumatic fever. 3. S

How are the major classes of arthropods classified, Q. How are the major cl...

Q. How are the major classes of arthropods classified according to the presence of larval stage in their embryonic development? In crustaceans there are others with indirect an

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