Question

the length of second pendulum is equal to?

Answer 1

the length of second pendulum is equal to?

Answer 2

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Answer 3

1.00 metre.

It was the way it was was first suggested in the 18th century that the new unit of length (1 metre) be defined.

Then they changed it for 1,000,000th part of a quarter meridian.

Answer 4

in these 1.0002m, 1.02m, 2m, 0.002m ???

Answer 5

What is value of g in your problem?

Answer 6

With standard acceleration g = 9,80665 m/s²

it should be 0.9936 m

Answer 7

ans should be these 1.0002m, 1.02m, 2m, 0.002m ???

Answer 8

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Answer 9

using the formula \[T=(2*3.14)*\sqrt{(l/g)}\]
\[l=(g*T*T)/(4*3.14*3.14)\]


using

g=9.8 m/s*s
T= 1s
l=0.22820 metre

Answer 10

@krishnakumar123 Your formula is correct.

Although it is not stated in the question, what is called a 'second-pendulum' is actually a pendulum that takes one second for a half oscillation (going from one end to the other).

This is why the 'second-pendulum' has a period T = 2 s.

Answer 11

@Vincent-Lyon.Fr
thanks for your clear explanation.............................

Answer 12

Some more information here:
http://en.wikipedia.org/wiki/Seconds_pendulum