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

Find percentage of daughters body received first degree, The Jones family w...

The Jones family was caught in a fire but escaped. Unfortunately the father and daughter suffered burns. The father had second degree burns on his chest, abdomen, and both arms, an

How can we assess the nutritional status of a chd infant, How can we assess...

How can we assess the nutritional status of a CHD infant? Various assessment methods can be used, particularly anthropometrical -weight, length (height), head circumference and

Swine fever, S w i n e fever It is also known as hog cholera and re...

S w i n e fever It is also known as hog cholera and results in high fever and prostration. E t iology : Pestivirus belonging to family Togaviridae is responsi

Hemicellulose, HEMICELLULOSE It consists of mannose, galactose, arab...

HEMICELLULOSE It consists of mannose, galactose, arabinose & xylose. It is a structural polysaccharide which helps in formation of cell wall. Maximum quantity of hemic

What is the importance of uterine glycogen-producing glands, What is the im...

What is the importance of the uterine glycogen-producing glands? The uterine glands produce glycogen that can be degraded into glucose to nourish the embryo before the complete

Explain human development, Explain Human Development? Human development...

Explain Human Development? Human development begins with fertilization, and continues throughout life. Fertilization occurs when two sex cells, a sperm cell and an egg cell, jo

Describe st segment depression, Q. Describe ST Segment Depression? The ...

Q. Describe ST Segment Depression? The development of ST-segment depression with exercise is probably the most reliable sign if myocardial ischaemia and appears to be the most

Receptors - eye, EYE HISTOR Y - Steva n described it first. S...

EYE HISTOR Y - Steva n described it first. Study of eye is ophthalmology. Instrument used to examine interior of eye is  ophthalmoscop e . SHAP E - More o

How plants classify to photoperiodism-based flowring, How do the plants cla...

How do the plants classify according to their photoperiodism-based flowering? According to their photoperiodism-based the flowering plants classify as long-day plants, those th

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