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Question

There are holes below the chimney of an oil lamp:
  1. to increase the brightness of the lamp
  2. None of these
  3. to supply oxygen for burning the oil
  4. to let the smoke escape

A
to let the smoke escape
B
to increase the brightness of the lamp
C
None of these
D
to supply oxygen for burning the oil
Solution
Verified by Toppr

Oxygen is a supporter of combustion. In its absence, the oil cannot burn. So, holes are provided at the bottom of the lamp to ensure a continuous supply of oxygen to allow the oil to burn.

Hence, option A is correct.

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