What is laws of refraction of light. Write its SI unit a student use a lens of focal length 40 cm and another of minus 20 CM write the nature and power of each lens
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w of refraction...
1. incident ray, normal and refracted ray are on the point of incidence. and on the same plane .
2. Snell's law: the ratio of sine of I to the sine of r is constant or equal to refractive index...
w of refraction...
1. incident ray, normal and refracted ray are on the point of incidence. and on the same plane .
2. Snell's law: the ratio of sine of I to the sine of r is constant or equal to refractive index...
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