A person stands on his two feet over a surface and experiences a pressure P. Now the person stands on only one foot. He would experience a pressure of magnitude

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Q: 40 (NDA-I/2015)
A person stands on his two feet over a surface and experiences a pressure P. Now the person stands on only one foot. He would experience a pressure of magnitude

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,9,13,4,3,6,9

keywords: 

{'pressure': [0, 0, 0, 1], 'feet': [1, 1, 3, 4], 'foot': [1, 0, 7, 2], 'magnitude': [0, 0, 3, 10], 'person': [3, 1, 18, 13], 'surface': [1, 0, 0, 0]}

When a person stands on their two feet over a surface, the pressure experienced is determined by the weight of the person distributed evenly over the surface area of both feet. This pressure is denoted as P.

If the person now stands on only one foot, the weight of the person remains the same, but it is now concentrated on a smaller surface area, specifically the surface area of only one foot. This means that the pressure experienced will be higher.

The correct answer given is option 4, which states that the person would experience a pressure of 2P. This is because when the weight is concentrated on one foot, the pressure is doubled compared to when it was distributed over both feet.

To summarize, the pressure experienced when standing on one foot is greater than when standing on both feet. The correct answer is 2P.