CBSE Class 12-science Physics Refraction by Plane Surfaces
- when snell's law is not valid? or for what angle of incidence snell's law is not valid?
- In an aquarium a fish 6 cm long is swimming directly towards the plane glass front . If at a certain moment head of the fish is 18 cm behind the glass front,find the apparent length of the fish as seen by a person looking through the glass. Given R.I. of water = 4/3
- When a white ray of light passes through a prism , it is dispersed. Why? Why does violet colour deviates most, but red colour deviates least while dispersed by a prism?
- draw the path of a ray passing through a glass slab. state the factors on which lateral displacement depend. what is the angle of deviation of emergent ray
- What is refraction? State the three laws of refraction.
- What is the basic cause for refraction?
- Why does a tank appear shallower than its actual depth?
- Prove that apparent depth is ¾ of real depth.
- What is the difference between reflection and refraction?
- What is the Snell's Law of Refraction?
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