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## A 30 m chain was tested, before measurement of the days work and found to be correct. After measuring 3000 m, the chain, was found to be 5 cm too long. At the end of days work after measuring 5400 m, the chain was found to be 10 cm too long. What

.By:Nikhil-bharadwaj

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## Answers

: (i) Actual length of chain (L) = 30 m.

chain length after measuring distances of 3000 m

measured distance = 3000 m

Incorrect length of chain (L’)=3 0+(0+0.05)/2=30.025 m

True distance = measured distance X (L’/L)

3000 * (30.025 / 30.00) = 3002.5 m.

ii) Remaining measured distance = 5400-3000

= 2000 m

Incorrect length of chain (L’)= 30+(0.05+0.10)/2=30.075 m

True distance = measured distance X (L’/L)=2000X(30.075/30)=2005 m

Total transmittance = 3002.5+2005

= 50007.5 m

manjarimattur

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