Wired Faculty
Draw the diagram given below and clearly show the path taken by the emergent ray. 
The diagram below clearly shows the path taken by the emergent ray. 
A ray of light from water to air. How does the speed of light change?
Speed of light increases as the ray of light travels from denser to rarer medium.
Name the factors affecting the critical angle for the pair of media.
Factors affecting the critical angle for the pair of media are:
i) Effect of colour and,
ii) Effect of temperature.
Sponsor Area
Light passes through a rectangular glass slab and through a triangular glass prism. In what way does the direction of the two emergent beams differ and why?
In a rectangular glass slab, the emergent ray is parallel to the incident ray but they are not along the same line whereas in a prism the emergent ray is not parallel to the incident ray. This is because, in a glass block the two surfaces at which refraction occurs and is parallel to each other.
Sponsor Area
Ranbir claims to have obtained an image twice the size of the object with a concave lens. Is he correct? Give a reason for your answer.
No, Ranbir is not correct.
Using, concave lens only small size upright images are obtained.
An image twice the size of the object with a concave lens cannot be obtained.
Sponsor Area
Mock Test Series
