Give three applications of photoelectric cells, Physics

Assignment Help:

Q. Give three applications of photoelectric cells.

(i) Photoelectric cells are utilized for reproducing sound in cinematography.

(ii) They are utilized for controlling the temperature of furnaces.

(iii) Photoelectric cells are utilized for automatic switching on and off the street lights.

(iv) Photoelectric cells are utilized in the study of temperature and spectra of stars.

(v) Photoelectric cells are as well used in obtaining electrical energy from sunlight during space travel.

(vi) These cells are utilized in instruments measuring light illumination.

(vii) These cells are utilized in opening and closing of door automatically.

(viii) Photoelectric cells are utilized in burglar alarm and fire alarm.


Related Discussions:- Give three applications of photoelectric cells

Centripetal force requirement- motions, Centripetal Force Requirement U...

Centripetal Force Requirement Uniform circular motion could be elaborates as the motion of an object within a circle at a constant speed. As an object moves within a circle and

Electromotive force – emf, ELECTROMOTIVE FORCE – EMF: To make use of el...

ELECTROMOTIVE FORCE – EMF: To make use of electricity by provision of an electric current, the potential different must be maintained. That is, the positive and negative charg

What are the electric generators, What are the Electric Generators? An ...

What are the Electric Generators? An electric generator is a situation in which a loop of conducting wire rotates in an area with a magnetic field. During the first half of t

#biot''s polariscope., Ask question #whether s component or p component pre...

Ask question #whether s component or p component present in the reflected light of Biot''s polariscope# Minimum 100 words accepted#

Semiconductor materials: silicon carbide, It has large energy gap 3.0ev and...

It has large energy gap 3.0ev and is regarded as high temperature semiconductor. It is extremely refectory subliming in the region of 2800 0 C. Because of large band gap it is hope

.work power and energy, work done by conservative force on a system is equa...

work done by conservative force on a system is equal to

Vector, I need some examples (at least 5 examples) of daily life applicatio...

I need some examples (at least 5 examples) of daily life application of vector. could you please help me? thankyou

Electrical power, Electrical power: Electrical power (symbol P) is the ...

Electrical power: Electrical power (symbol P) is the rate at which work is done or the rate of conversion of energy by an electrical system. The SI unit of power is the

Calculate the entropy change in the universe, A 2kg piece of copper at 200 ...

A 2kg piece of copper at 200 o C is taken out of a furnace and is allowed to cool in air with an ambient temperature of 25 o C. Calculate the entropy change in the universe as a

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