Funny mirrors can make your face look short, long, fat or distorted. What causes the images of these funny mirrors to be distorted?
Important Questions on Light
Neha focused a magnifying glass on to a tissue paper and held it. After a while, the tissue paper caught fire. Identify the statement that provides the correct explanation for this observation.
Seema observed that a paper caught fire when a magnifying glass is focused on the paper for some time. 
She deduced that light rays concentrate at a point to produce this effect. Which of these ray diagrams correctly shows the functioning of a magnifying glass?
Tremendous amount of energy is produced in sun by the nuclear fusion of hydrogen atoms. This energy is received by earth in various forms. Solar energy is directly or indirectly the source of energy of many energy resources of earth. The diagram below shows the types of electromagnetic energy given off by the Sun. The shaded part of the diagram shows the approximate amount of each type actually reaching Earth's surface. Which type of rays make up the greatest amount of electromagnetic energy reaching the earth's surface?
The primary colours of white light are red, green and blue. These are called primary colours, because they cannot be made by mixing other colours of light. Secondary colours are formed by mixing primary colours.
A ray of white light is passed through two filters - a Cyan Filter and a Magenta Filter. (A cyan filter is one which allows only cyan coloured light to pass through). Which colour light will be seen by the observer?
The phenomenon due to which a ray of light, travelling from one optical medium to another optical medium, bounces off from its surface with the change of angle, is called reflection of light. A ray of light which travels from an optical medium towards a mirror is called incident ray. A ray of light which bounces off the mirror surface, into the same optical medium in which the incident ray was travelling, is called reflected ray. Which one of the diagrams below correctly shows the path of the reflected ray?
Aanad and his friends went for a field trip. While travelling on the road they noticed many traffic signals. They tried deciphering the meaning of each signal. Some time later, they came across the following sign:
Which phenomenon of light is illustrated by the pair of boards shown here?
Veena observes the time in the clock shown in picture, through a mirror and thinks it is . Her, sister Regha told that she is wrong. What would be the actual time?
