Speed of Boy & Image in Plane Mirror: A,B,C Explained

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SUMMARY

When a boy runs parallel to a plane mirror while maintaining a constant distance of 40 meters from it, the speed of the boy and his image remains the same. This is because the image in a plane mirror moves in direct correlation with the object's movement, reflecting the same speed. Therefore, the correct answer is A: Same. The distance from the mirror does not affect the relative speed of the image compared to the boy when running parallel.

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  • Understanding of basic physics concepts related to reflection
  • Knowledge of the properties of plane mirrors
  • Familiarity with the concept of relative motion
  • Ability to visualize geometric relationships in two dimensions
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  • Study the laws of reflection in physics
  • Explore the concept of relative velocity in motion
  • Learn about the behavior of images in different types of mirrors
  • Investigate practical applications of mirrors in optical devices
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Faris1985
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Q. If a boy is at a distance of 40m from a plane mirror and runs parallel to the plane of the mirror while maintaining the same distance from the mirror what will be the speed of the image and the boy.
A. Same
B. The boy has greater speed than his image
C. The image has greater speed than the boy
Please explain why for each A,B or C.
 
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Faris1985 said:
Please explain why
This is directed at you, not us.
 
Faris1985 said:
Q. If a boy is at a distance of 40m from a plane mirror and runs parallel to the plane of the mirror while maintaining the same distance from the mirror what will be the speed of the image and the boy.
A. Same
B. The boy has greater speed than his image
C. The image has greater speed than the boy
Please explain why for each A,B or C.

Think of it. If the boy runs parallel maintaining a same distance, how would it be different from the same boy running towards the mirror.
Also, think of what the distance of image and object is from the mirror and with respect to each other.
If you do a little pondering, you would answer it.
 

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