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प्रश्न
What is mirage? Give a reason for its formation?
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उत्तर
Hot sand (Rarer medium)
MIRAGE: When it is very hot, an inverted image of a tree is seen which is ‘illusion of eye’ (gives a false impression) of water under the tree. This is called a MIRAGE.”
REASON: Sand becomes very hot during hot noon, the layers of air in contact become rarer (expand) while upper layers of air are still at comparatively low temperature and are denser medium.
When rays of light from DENSER to RARER medium (starting from tree) are bent away from normal when refracted from Rarer to Denser medium (going towards the eye) bend towards normal and a tree appears INVERTED.
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संबंधित प्रश्न
Describe an experiment to show that a light ray bends when it passes from one transparent medium into another transparent medium.
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The image formed in a plane mirror is upside down
Say TRUE or FALSE
A plane mirror is opaque
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The images that are obtained on a screen are called ______ and that which cannot be obtained on a screen ______.
An object is placed at a distance of 3cm from a plane mirror. The distance between the object and image is 3cm.
