Periscopes use plane mirrors to see objects in blind spots. What type of image is formed in the perescope?
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The reflected rays of the first plane mirror become incident rays for the second plane mirror. An optical instrument (or device) in which reflected light is periscope. A periscope is a long, tubular device through which a person can see objects that are out of the direct line of sight.
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A virtual and straight (without inversion) image is formed in the periscope.
• The optical system of a periscope is dependent on the two mirrors inside of a periscope.
• Now we all know that images which are formed by the mirror reflection are always virtual.
• The formed virtual image is straight because when the number of mirrors is even,the inversion is cancelled by the next reverse reflection.
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