10 Questions
What is the principle of reversibility of light?
Light follows the same path regardless of direction of travel
What is the critical angle?
Angle of incidence equal to 90 degrees
In total internal reflection, the light ray moves from...
A more dense medium to a less dense medium
What must be true about the angle of incidence for total internal reflection to occur?
It must be greater than the critical angle
What is a lens?
A transparent substance bound by two curved surfaces
What is the working principle of a mirror?
Reflection of light
What does the lens formula relate to?
Power and focal length of a lens
What does the lens maker formula calculate?
Focal length of a lens
According to the principle of reversibility, what happens if the direction of travel of light is reversed?
Light will follow the same path as before.
What should be true about the angle of incidence for total internal reflection?
It should be greater than the critical angle.
Explore the principles of ray optics including reflection, refraction, mirrors, lenses, and optical instruments such as microscopes and telescopes. Dive into concepts like mirror formula, lens formula, magnification, and power of a lens.
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