If a body falls in air, the resistance of air depends to a great exten

1.	If a body falls in air, the resistance of air depends to a great extent on the shape of body. Three different shapes are given. Identify the combination of air resistance which truly represent the physical situation (cross sectional areas are the same)(a) 1 < 2 < 3(b) 2 < 3 < 1(c) 3 < 2 < 1(d) 3 < 1 < 2
Answer» Correct Option (c) 3 < 2 < 1 Explanation : Figure 3 is stream lined, so air resistance of it will be least. For figure 1 surface area is maximum so air resistance for it is minimum :. Correct order is 3 < 2 < 1

If a body falls in air, the resistance of air depends to a great extent on the shape of body. Three different shapes are given. Identify the combination of air resistance which truly represent the physical situation (cross sectional areas are the same)(a) 1 < 2 < 3(b) 2 < 3 < 1(c) 3 < 2 < 1(d) 3 < 1 < 2

Answer»

Correct Option (c) 3 < 2 < 1

Explanation :

Figure 3 is stream lined, so air resistance of it will be least. For figure 1 surface area is maximum so air resistance for it is minimum

:. Correct order is 3 < 2 < 1

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