CBSE Class 12 science: Refraction by Plane Surfaces Videos | Refraction by Plane Surfaces

• there is no deviation
  
• explain relative refractive index??
• What is real depth and apparant depth and deravation
• 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?

Queries asked on Sunday & after 7 pm from Monday to Saturday will be answered after 12 pm the next working day.