Geometric optics(CET+Board)

It is the study of Light

• Optics

• Opthology

• Pathology

light is a wave phenomenon (Huygens 1690)

• Wavelength

• Wave optics

• Geometric Illusion

• Geometric Optics

started by Planck and Einstein around 1900

• Wave optics

• Geometric optics

• Modern Optics

• Geometric Illusion

light consists of rays, moves in straight line until it hits interface

• Geometric Pattern

• Geometric Illustration

• Geometric Optics

• Wave

Which of the following correct illustration of Geometric Optics

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reflected light leaves surface at the same angle it was incident on surface

• Specular Reflection

• Refraction

• Reflector

light rays change direction (are “refracted”) when they move from one medium to another

• Refraction

• Reflection

• Disperse

• Dispersion

What law is this “quantitative description of refracted (bent) ray”

• Smell’s law

• Snell’s law

• Snail’s Law

We’ve treated index of refraction of a material as if it had a single value for all wavelengths

• Disperse

• Optics

• Refraction

• Dispersion

Bonus question: Worth 100 Points

• What do you think?

• It’s a prank?

• Yes

• No