SATHEE: Properties Of Solids And Liquids Question 411

Properties Of Solids And Liquids Question 411

Question: A pendulum clock is 5 seconds fast at temperature of $15^{\circ} C$ and 10 seconds slow at a temperature of $30^{\circ} C$ . At what temperature does it give the correct time? (take time interval = 24 hours)

Options:

A) $18^{\circ} C$

B) $20^{\circ} C$

C) $22^{\circ} C$

D) $25^{\circ} C$

Show Answer

Answer:

Correct Answer: C

Solution:

[c] $Δ t = \frac{1}{2} α Δ T \times t$

$∴ 5 = \frac{1}{2} α (T - 15) \times 86400$

and $10 = \frac{1}{2} α (30 - T) \times 86400$

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Properties Of Solids And Liquids Question 411

Question: A pendulum clock is 5 seconds fast at temperature of 15∘C and 10 seconds slow at a temperature of30∘C . At what temperature does it give the correct time? (take time interval = 24 hours)

Options:

Answer:

Solution:

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Question: A pendulum clock is 5 seconds fast at temperature of $15^{\circ} C$ and 10 seconds slow at a temperature of $30^{\circ} C$ . At what temperature does it give the correct time? (take time interval = 24 hours)