The Snell’s law is given bya)N1 sin θi = N2 sin θtb)...
Answer: a
Explanation: The Snell law states that in an oblique medium, the product of the refractive index and sine of incidence angle in medium 1 is same as that of medium 2. Thus it is given by N1 sin θi = N2 sin θt.
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The Snell’s law is given bya)N1 sin θi = N2 sin θtb)...
The Snell is a term used in optics to describe the phenomenon of light bending as it passes from one medium to another with a different refractive index. It is named after the Dutch mathematician Willebrord Snellius, who first described this phenomenon in the 17th century.
The Snell's law, also known as the law of refraction, states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the refractive indices of the two media. Mathematically, it can be expressed as:
n1 * sin(theta1) = n2 * sin(theta2)
where n1 and n2 are the refractive indices of the two media, and theta1 and theta2 are the angles of incidence and refraction, respectively.
This law explains why light bends when it passes from air to water or from air to glass. The speed of light is different in different materials, and when light crosses the boundary between two media, it changes direction due to the change in speed. The amount of bending depends on the refractive indices of the two media and the angle of incidence.
The Snell's law is widely used in various fields of optics, such as lens design, fiber optics, and the study of light propagation in different media. It allows scientists and engineers to predict and control the behavior of light as it interacts with different materials, leading to numerous technological applications.