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What is the correct energy transformation during burning of a candle?
2025
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
Assertion (A): As the level of water in a tall measuring cylinder kept under running tap rises, the pitch
of sound gradually increases.
Reason (R): Frequency of sound is inversely proportional to the length of the water column.
- Both (A) and (R) are true and (R) is correct explanation of (A).
- Both (A) and (R) are true and (R) is not the correct explanation of (A).
- (A) is true but (R) is false.
- (A) is false but (R) is true.
Board paper · 2025 · Oswaal Books (reproduction of CISCE board paper)
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