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What is the definition of critical angle?
The definition of critical angle is the angle of incidence that refraction can still occur.
If angle of incidence equals critical angle what is angle of refraction?
90o. i think there will be no refraction there will be totally internal reflection
Define critical angle?
critical angle is defined as angle of incidence provide an anlge of refraction of 90 degree
How does the index of refraction affect the critical angle?
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At what angle does no refraction occur?
this angle is called the critical angle of a substance. To work it out you must know the refractive index of that substance.
When light is traveling along the normal will its direction change?
This is total internal reflection where the angle of refraction is 90 degrees and its incident angle would be the critical angle(angle of incident for which the angle of refraction is 90).... This hapens when the angle of incidence is in a medium more dense than the angle of refraction's medium
What is total internal refraction?
When the angle of incidence is greater than the critical angle,the light ray reflects into denser medium at interface. This is total internal refraction
What tajes place when the angle of incidence is smaller than the critical angle?
Refraction and partial internal reflection occurs
Why critical angle is depend on wavelength used?
The behaviour of electromagnetic waves of depends on their wavelengths. As a result the critical angle for refraction changes according to the wavelength.
If the angle of incidence increases and the indexes of refraction stay the same what happens to the angle of refraction?
The angle if refraction also increases.
What best describes why the critical angle of an air-glass boundary is 39.3?
The critical angle depends on the index of refraction of the two substances, in this case, air and glass. The angle can be calculated by Snell's Law. It won't always be exactly 39.3°, since different glasses have different indices of refraction.
Does doubling the angle of incidence cause the angle of refraction to double?
No, doubling the angle of incidence itself will not cause a doubling of the angle of refraction.
