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A steel teape is placed around the earth...

A steel teape is placed around the earth at the equator. When the temperature is `0^(0)C` neglecting the expansion of the earth, the neglecting between the tape and the ground if the temperature of the tape rises to `30^(0)C`, is nearly `(alpha_(steel) = 11 xx 10^(-6) // K)`

A

`1.1 km`

B

`0.5 km`

C

`6400 km`

D

`2.1 km`

Text Solution

Verified by Experts

The correct Answer is:
D
Increase in length of tape: `Deltal = lalphaDeltaT`
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