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प्रश्न
उत्तर
Three characteristics of light are:-
(a). Light waves can travel through a vacuum.
(b). Light waves are transverse waves.
(c). The velocity of light in a vacuum is 3 x 108 m/s.
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संबंधित प्रश्न
Suppose you are in a dark room. Can you see objects in the room? Can you see objects outside the room? Explain.
Fill in the blank
We are able to see the objects around us due to _________, reflection.
Write down four characteristics of image formed in a plane mirror.
Draw a neat two ray diagram to illustrate how a concave mirror is used as a shaving mirror.
Identify the following kind of beam of light.
The word PLATE written on a paper is held in front of a plane mirror. Write down the letters as seen in the following case.
The paper is held perpendicular to the mirror.
Complete the ray diagram to show the image observed by the eye after reflection in the following figure.
Say TRUE or FALSE
We see planets because they reflect light from the sun
