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

Making a simple refracting telescope, Making a simple refracting telescope ...

Making a simple refracting telescope  To make a simple telescope, two cardboard tubes will be needed, one fitting inside the other.  It is not possible to make a satisfactory t

Relation among electric force and electric field, In an electric field   a ...

In an electric field   a charge (Q) experiences a force F = QE. If charge is positive then force is directed in the direction of field whereas if charge is negative force acts on i

Explain about the amplitude mode of data presentation, Explain about the am...

Explain about the amplitude mode of data presentation. The A-mode: The A-mode or the Amplitude mode of data presentation exhibits the amount of obtained ultrasonic energy li

Define magnetic moment of a current loop, Define magnetic moment of a curre...

Define magnetic moment of a current loop. The magnetic moment of a current loop is described as the product of the current and the loop area. Its direction is perpendicular to

Determine the radius of the collapsed neutron star, A Neutron Star is forme...

A Neutron Star is formed in the aftermath of a Supernova explosion. The star was originally rotating with a period of 20 days and had a mass of 2x10 30 kg and radius of 6x10 8 m.

Find weight of picture frame, a picture frame is hanging by two verticle st...

a picture frame is hanging by two verticle strings the tention in the string are 3.8N and 4.4N find the weight of the picture frame

Refractive index of liquids using prism spectrometer, explain the refractiv...

explain the refractive index of the transparent liquid using prism spectrometer?

How much power is delivered by machine, A machine performs 8 Joules of work...

A machine performs 8 Joules of work in 2 seconds. How much power is delivered by this machine? Ans: The power is delivered by this machine is 4 watts.

Dimension of unit impulse, Dimension of unit impulse DIMENSION ? The di...

Dimension of unit impulse DIMENSION ? The dimension of impulse is [MLT -1 ]

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