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प्रश्न
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उत्तर
Four characteristics of light are:-
(a). Light waves can travel through a vacuum
(b). Light waves are transverse waves
(c). The wavelength of light waves is short so that their length is measured in cents-microns.
(d). The velocity of light in a vacuum is 3 x 108 m/s.
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संबंधित प्रश्न
State the characteristics of the image formed by a plane mirror.
The diagram below in figure shows an object XY in front of a plane mirror MM1 . Draw on the diagram, path of two rays from each point X and Y of the object to show the formation of its image .
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.
Complete the ray diagram to show the image observed by the eye after reflection in the following figure.
Find the odd one.
glass bottle, exam pad, paper plate, wooden board
Higher Order Thinking Skills.
When a ray of light passes from air into glass, is the angle of refraction greater than or less than the angle of incidence?
______ through which light can pass completely.
A point source of light S is placed in front of two large mirrors as shown. Which of the following observers will see only one image of S?
Play with a mirror
Write your name with a sketch pen on a thin sheet of paper, polythene or glass. Read your name on the sheet while standing in front of a plane mirror. Now look at your image in the mirror.
