Questions
A pendulum clock runs fast by 5 seconds per day at 200c and goes slow by 10 seconds per day at 35°C. It shows correct time at a temperature of
a
27.5°C
b
25.°C
c
30.°C
d
33.°C
detailed solution
Correct option is B
12a(35−t)×86400=10 ...(1)12a(t−20)×86400=5 ...(2)Solving 1 and 2Talk to our academic expert!
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A rotating solid metal sphere is heated by . If then percentage change in its moment of inertia is
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