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.
Diffraction 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.
Refraction 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.
The 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.
light sources must be coherent and monochromatic
Waves have to bend around an obstacle.
Diffraction example: you run or bounce into somthing and, the wave goes around the object. This is called diffraction.
When gap size is equal to wavelength
When gap size is equal to wavelength
The window is too wide (relative to the wavelength of light)
Diffraction is the bending of waves around an obstacle under specific circumstances.
Diffraction example: you run or bounce into somthing and, the wave goes around the object. This is called diffraction.
When gap size is equal to wavelength
Condensation
When gap size is equal to wavelength
Yes, i am sorry if I'm wrong don't take my word for it
The window is too wide (relative to the wavelength of light)
Diffraction is the bending of waves around an obstacle under specific circumstances.
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.
"Diffraction" does.
65.6
Surface Waves
Diffraction.