Question

Three lamps A, B and C as shown in the figure above are burning using oil as its source of energy. Three incense sticks, E, F and G are taken. E is dipped in oil, F is dipped in petrol and G is dipped in water and are immediately placed over the wick of A, B and C respectively. Then

• A. A will be put off, B will glow bright and C will be put off
• B. A will be put off, B will glow bright and C will be put off
• C. A, B and C will keep glowing
• D. C will be put off and the status of A and B be cannot determined

Answer 1

The Correct Option is B

To solve this problem, we need to consider the effects of different substances on the combustion process of oil lamps:

1. Lamp A: The incense stick E is dipped in oil and placed on Lamp A. Oil is a flammable substance that aids combustion. However, when the wick is soaked with excess oil, it doesn't allow sufficient air to mix with the fuel, thereby hindering the combustion process. Consequently, Lamp A will be put off.
2. Lamp B: The incense stick F is dipped in petrol and placed on Lamp B. Petrol is highly volatile and combusts easily, enhancing the burning process and increasing brightness. Therefore, Lamp B will glow bright.
3. Lamp C: The incense stick G is dipped in water and placed on Lamp C. Water is a combustion inhibitor, and it cools down the wick, disrupting the combustion process. Hence, Lamp C will be put off.

Thus, the correct conclusion is that A will be put off, B will glow bright and C will be put off.