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they are two conditions
1. the incident ray , refracted ray and the normal all lie in the same plane. The refracted ray ant the incident ray are on opposite sides of the line that separates the two medium.
2. Light bends toward the normal when the speed of light in the second medium is less than the speed of light in the first medium. Light bends away from the normal when the speed of light in the second medium is greater.
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∙ 12y ago
Wiki User
∙ 11y agoDiffraction effect depends upon the size of obstacle. Diffraction of light takes place if the size of obstacle is comparable to the wavelength of light.
Light waves are very small in wavelength, i.e. from 4 x 10-7 m to 7 x 10-7 m. If the size of opening or obstacle is near to this limit, only then we can observe the phenomenon of diffraction.
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∙ 12y agoRefraction occurs when the wave changes velocity. The light travels at different speeds in different mediums, so for refraction to occur it is necessary for the light to pass from one medium to another at an angle different than 0 and 90 degrees.
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∙ 9y agoThe conditions necessary to observe diffraction and interference you must have soap films interference effects even with incoherent light. Also the wavelength must be the same is important.
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∙ 11y agolight sources must be coherent and monochromatic
Wiki User
∙ 12y agoWaves have to bend around an obstacle.
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Why diffraction occur?
Diffraction example: you run or bounce into somthing and, the wave goes around the object. This is called diffraction.
When does diffraction occur?
When gap size is equal to wavelength
When does maximum diffraction occur?
When gap size is equal to wavelength
Why does diffraction not occur when light passes through a window?
The window is too wide (relative to the wavelength of light)
What is the bending of waves around the edge of a barrier called?
Diffraction is the bending of waves around an obstacle under specific circumstances.
Why diffraction occur?
Diffraction example: you run or bounce into somthing and, the wave goes around the object. This is called diffraction.
When does diffraction occur?
When gap size is equal to wavelength
What is required in order for petrifaction to occur?
Condensation
When does maximum diffraction occur?
When gap size is equal to wavelength
Does diffraction occur when waves bounce around the edge of a barrier?
Yes, i am sorry if I'm wrong don't take my word for it
Why does diffraction not occur when light passes through a window?
The window is too wide (relative to the wavelength of light)
What is the bending of waves around the edge of a barrier called?
Diffraction is the bending of waves around an obstacle under specific circumstances.
Why is X-ray radiation required in protein structure determination?
Protein structure determination is basically crystallography i.e. finding out the arrangements of atoms. This technique uses Diffraction maxima and minima to determine 3D structures. For diffraction to occur, the size of the obstacle must be close to the wavelength of light used. Since the obstacles in this case are molecules, we use X rays, whose wavelength is comparable to radius of molecules.
Which term describes the bending of a wave around an object?
"Diffraction" does.
A diffraction grating produces a first-order maximum at an angle of 20.0 degrees what is the angle of the second order maximum?
65.6
Which type of waves are combination waves that occur at the boundary between two media?
Surface Waves
What is the condition for absent spectra in a diffraction grating?
In a plane diffraction grating, if the angle of diffraction is such that the minima due to diffraction component in the intensity distribution falls at the same positions of principal maxima due to interference component, then, that order of principal maxima will be missing or absent. For more information, please visit: http://www.theglobaltutors.com/theglobaltutors/Optics-Homework-Help/Spectra-Diffraction-Grating https://msk1986.files.wordpress.com/2010/12/unit-iii-diffraction.pdf
