Question

what is mean by illusion

Answer 1

An illusion is a distortion of the senses, which can reveal how the human brain normally organizes and interprets sensory stimulation. Though illusions distort reality, they are generally shared by most people.[1]

Illusions may occur with any of the human senses, but visual illusions (optical illusions) are the best-known and understood. The emphasis on visual illusions occurs because visionoften dominates the other senses. For example, individuals watching a ventriloquist will perceive the voice is coming from the dummy since they are able to see the dummy mouth the words.

Answer 2

heya @user
here is your answer....

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Illusion => a deceptive appearance or impression is knows as illusion.

#There are three types of illusions.

★ Optical Illusions
★ Auditory Illusions
★ Tactile Illusions

## the most common illusion is optical illusion ##

Optical illusion is an instance of deception by an object causing a false visual impression for example mirage in a desert, etc..

This mirage caused due to bending of light rays in the layers of air of varying density.

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