Previous year MCQs

General science UPPSC 1994 GS-I
Question

Why do pendulum clocks usually lose time in summer?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Length of the pendulum increases, increasing the time period of unit oscillation

Detailed Solution:

The correct answer is “ Length of the pendulum increases, increasing the time period of unit oscillation”.
Pendulum clocks become slow in summer because the length of the pendulum increases due to which the time period increases and the pendulum takes more time to complete one oscillation.

Similar Questions:

The age of the tree can be determined from the
  1. A) Counting of leaves on the tree
  2. B) Counting the number of rings on its stem
  3. C) Counting the branches on the tree
  4. D) Measurement of its height
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List-I List-II
(Naturally occurring substance) - (Elements present)

A. Diamond - 1. Calcium
B. Marble - 2. Silicon
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  2. B) Toys
  3. C) Glass and Pottery
  4. D) Electrical
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  2. B) Methyl chloroform used as solvent
  3. C) HALON-1211 used in fire fighting
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'Cloves' are:
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  2. B) leaves
  3. C) nodules of roots
  4. D) dried flowers
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  3. C) An adviser to Prime Minister
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The year 1986 was observed as the International Year of:
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