A ray of white light is passed through two filters - a Cyan Filter and a Magenta Filter. Which colour light will be seen by the observer?
Important Questions on Light
See this sculpture of a man's face. Depending on the direction from which light falls on it, the view changes. Given here is the view when the light falls on it from the front.
From which direction is the light falling in the case shown below?
Simran was studying about light. She learned that objects are classified based on how well they transmit light through them. A transparent object allows light to pass through them easily. Air, glass water, etc. are examples of transparent materials. If she drops a perfectly transparent piece of glass into perfectly clear water, will she be able to see the glass?
Four students, P, Q, R and S are standing in front of a mirror facing it. Their positions, as seen from the top, are shown below. Which of these students can see Q as well as Q's reflection in the mirror?
The arrangement shown below was used in century theatres to create images of ghosts that could appear and disappear at will. What should be placed at X for the trick to work?
Which box(es) of the table would best represent an image formed by a plane mirror?
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Any three colours of light, which produce white light when combined with the correct intensity, are called PRIMARY COLOURS of light. (Red, Green and Blue) Colours produced by the addition of equal intensities of two primary colours of light are called SECONDARY COLOURS of light. (Yellow, Cyan and Magenta) Any two colours of light, which produce white when combined, are said to be COMPLEMENTARY COLOURS of each other. Study the figure given here and answer the following question.
Which of the following colours is a complementary colour of 'BLUE'?
