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Lakshya
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A man of height 2h stands in the middle of a room of length 6h. The height of a wall is 4h. What is the minimum length of a mirror to be placed on the wall in front of the man so that he can see the entire wall behind him?
Lakshya said:A man of height 2h stands in the middle of a room of length 6h. The height of a wall is 4h. What is the minimum length of a mirror to be placed on the wall in front of the man so that he can see the entire wall behind him?
The question is clear as it is. By the way, the answer is (4/3)h. I want the solution.LowlyPion said:What is your approach to the problem? What conditions have to be met?
Lakshya said:The question is clear as it is. By the way, the answer is (4/3)h. I want the solution.
LowlyPion said:Forum rules are you will have to find the solution yourself.
I was offering to help. If you need help, you can explain what you've done.
As to the answer, I already had that.
Lakshya said:Yes, I need help. Tell me how to solve this problem. I don't know even a bit how to solve it.
The minimum length of the mirror required for a man to see the wall behind him depends on his height and the distance between him and the wall. Generally, a mirror that is at least half the height of the man should be sufficient.
To calculate the minimum length of the mirror required, you need to know the height of the man and the distance between him and the wall. Then, you can divide the height of the man by 2 and add the distance between him and the wall to get the minimum length of the mirror.
Yes, the minimum length of the mirror required can vary for different people depending on their height and the distance between them and the wall. It is important to take these factors into account when determining the minimum length of the mirror needed.
While there is no specific formula for calculating the minimum length of the mirror required, you can use the basic principles of geometry to determine the length based on the height of the man and the distance to the wall.
The type of mirror does not necessarily affect the minimum length required, as long as it is able to reflect the image of the wall behind the man. However, a larger mirror may be needed for a clearer and more accurate reflection.