Basic concepts of electromagnetic spectrum, Physics

Assignment Help:

Basic concepts of electromagnetic spectrum:

BASIC CONCEPTS

1. When Sun light falls on a prism, the transmitted light produces a sequence of colours called 'Spectrum'.

2. A spectrum is a group of wavelengths or frequencies. 

3. Colour is a sensation in the brain due to the execution of retina, by an electromagnetic wave of some particular wavelength.

4. The unit of wavelength is Angstrom. It is denoted by Å.

5. 1Å = 10-10m or 10 cm.-8

6. When white light falls on a prism it gives a Spectrum of 7 colours. The seven colours are Violet, Indigo, Blue, Green, Yellow, Orange and Red.

7. Wave length of Violet colour is 4460Å to 4000Å.

8. The radiations having wavelengths less than 4000Å (Violet) are called Ultra Violet radiations (UV).

 


Related Discussions:- Basic concepts of electromagnetic spectrum

Kinematics.., a boy jumps from height of 100m?what will be its velocity whe...

a boy jumps from height of 100m?what will be its velocity when it reaches ground?

Physics, the magnitude and direction of acceleration of body both are const...

the magnitude and direction of acceleration of body both are constant will the body moves in straight line

What kinetic energy does it collide into the other sphere, Two faultlessly ...

Two faultlessly conducting spheres are in an evacuated region of space. One is at a potential of -1200 volts as well as the other is at a potential of 1500 volts. A free electron i

What are semiconductors, What are semiconductors? Give an example for n-typ...

What are semiconductors? Give an example for n-type semiconductors. Semiconductors are materials having electrical conductivity among that of insulators and conductors. This i

Occurrence on a diffraction grating the first order maximum, When white lig...

When white light is normally occurrence on a diffraction grating the first order maximum for which colour of light occurs at the greatest angle with respect to the straight ahead d

Explain absorption spectrum, When white wave passes by a semi-transparent s...

When white wave passes by a semi-transparent solid, or liquid or gas, it's spectrum have certain dark lines or bands, such spectrum is known as absorption spectrum (of the substanc

Pressure and fluid, what pressure is created when 2.0 liters of air are for...

what pressure is created when 2.0 liters of air are forced into a bicycle tire originally at atmospheric pressure and containing 0.45 liter of air? the inside volume of the tire re

the two types of currents, A battery and the plug points in the switch boa...

A battery and the plug points in the switch boards home give potential difference. What is the disimilar in the nature of the  current given by the two? Compare and contrast the tw

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