Physics
(i) Write a relationship between angle of incidence and angle of refraction for a given pair of media.
(ii) When a ray of light enters from one medium to another having different optical densities it bends. Why does this phenomenon occur?
(iii) Write one condition where it does not bend when entering a medium of different optical density.
Related Questions
Some ice is heated at a constant rate, and it's temperature is recorded after every few seconds, till steam is formed at 100°C. Draw a temperature time graph to represent the change. Label the two phase changes in your graph.
What do you understand by the term 'Scattering of light'? Which colour of white light is scattered the least and why?
A copper vessel of mass 100 g contains 150 g of water at 50 °C. How much ice is needed to cool it to 5 °C?
Given : Specific heat capacity of copper = 0.4 J g-1 ⁰C-1
Specific heat capacity of water = 4.2 J g-1 ⁰C-1
Specific latent heat of fusion of ice = 336 J g-1
A lens produces a virtual image between the object and the lens.
(i) Name the lens.
(ii) Draw a ray diagram to show the formation of this image.