BD Merit - Freelancing, BCS, Bank, Primary, Admission, NTRCA

1 . 66 cubic centimeters of silver is drawn into a wire 1 mm in diameter. The length of the wire in meters will be-

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Answer: Option A

Explanation:

Volume (V) = πr²h

Where:

First, let's find the radius. The diameter of the wire is given as 1 mm, which means the radius (r) is half of that:

r = 1 mm / 2 = 0.5 mm = 0.05 cm (since 1 cm = 10 mm)

Now, plug in the values into the formula:

66 = 3.14159 * (0.05 cm)² * h

Now, solve for h (the length of the wire):

h = 66 / [3.14159 * (0.05 cm)²] h ≈ 84 meters

So, the length of the wire is approximately 84 meters.

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