Question

Name two devices that work on rectilinear propagation of light.


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Answer 1

Answer

1) In a plane mirror there is no lateral inversion - False

• Correct statement will be in a lateral inversion there will be lateral inversion
• Lateral inversion is the property where the right side in our real word appears left and the left side appears on te right

2) Reflecting of light takes place from smooth and polished surface - True

• Why do we use plane mirrors, because they are smooth and polished which helps them in regular reflection

3) An image formed by a plane mirror is equidistant - True

• A plane mirror forms an image as of the same distance in which we are

4) A plane mirror forms a real image - False

• A plane mirror forms a virtual image which is upright whereas in a real image it will be inverted
• Also a real image is formes when two light rays really meet whereas a virtual image is formed when our eyes imagines point where the light rays will meet

5) Real image can be obtained from a screen - True

• We can obtain a real image from a screen as those light rays do meet each other