KCET · Physics · Alternating Current
A substance of mass \( 49.53 \mathrm{~g} \) occupies \( 1.5 \mathrm{~cm}^{3} \) of volume. The density of the substance (in \( \mathrm{g} \) \( \left.\mathrm{cm}^{-3}\right) \) with correct number of significant figures is
- A \( 33.02 \)
- B \( 3.300 \)
- C \( 3.3 \)
- D \( 3.30 \)
Answer & Solution
Correct Answer
(A) \( 33.02 \)
Step-by-step Solution
Detailed explanation
Density \(=\frac{\text { Mass }}{\text { Volume }}\)
Given, mass \(=49.53 \mathrm{~g} ;\) volume \(=1.5 \mathrm{~cm}^{2}\)
Therefore, Density \(=\frac{49.53}{1.5} \mathrm{gcm}^{-3}=33.02 \mathrm{gcm}^{-1}\)
Given, mass \(=49.53 \mathrm{~g} ;\) volume \(=1.5 \mathrm{~cm}^{2}\)
Therefore, Density \(=\frac{49.53}{1.5} \mathrm{gcm}^{-3}=33.02 \mathrm{gcm}^{-1}\)
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