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Q13 (CISF/2019) Science & Technology › Basic Science (Physics, Chemistry, Biology)

The diameter of a wheel is 1-26 m. How far will it travel in 500 revolutions?

Explanation

To find the distance traveled by a wheel, we use the relationship: Distance = Number of Revolutions × Circumference.

The circumference (C) of a circle is calculated using the formula C = π × d, where 'd' represents the diameter. Although the question contains a typo ("1-26 m"), it is interpreted as 1.26 m based on standard mathematical problems of this type.

1. Calculate the circumference:
C = π × d
C = (22/7) × 1.26 m
C = 22 × 0.18 m = 3.96 m

2. Calculate the total distance for 500 revolutions:
Distance = 500 × 3.96 m = 1980 m

Thus, the wheel travels 1980 meters in 500 revolutions. Option B is the correct choice.

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