Question

A brass pendulum clock keeps correct time at 15°C. How many seconds per day it will lose or gain at 0°C?

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Answer 1

Answer:

Explanation:

T=2π  

g

L

​  

 

​  

 

T

ΔT

​  

=  

2

1

​  

×  

L

ΔL

​  

=  

2

1

​  

αΔθ

ΔT=  

2

T

​  

αΔθ

α  

Brass

​  

=1.8×10  

−5

/  

o

​  

C

ΔT=  

2

86400

​  

×1.8×10  

−5

×15

ΔT=12.96 sec

Answer 2

Explanation:

A brass pendulum clock keeps correct time at 15°C. How many seconds per day it will lose or gain at 0°C?