AP EAMCET · PHYSICS · Thermal Properties of Matter
The relation between the coefficient of real expansion \(\left(\gamma_r\right)\) and coefficient of apparent expansion \(\left(\gamma_a\right)\) of a liquid and the coefficient of linear expansion \(\left(\alpha_g\right)\) of the material of the container is
- A \(\gamma_r=\alpha_g+\gamma_a\)
- B \(\gamma_r=\alpha_g+3 \gamma_a\)
- C \(\gamma_r=3 \alpha_g+\gamma_a\)
- D \(\gamma_r=3\left(\alpha_g+\gamma_a\right)\)
Answer & Solution
Correct Answer
(C) \(\gamma_r=3 \alpha_g+\gamma_a\)
Step-by-step Solution
Detailed explanation
Coefficient of real expansion = coefficient of apparent expansion + coefficient of expansion of material of container but \(\gamma_r=\gamma_a+\gamma_g\) So, \(\gamma=3 \alpha\) \(\therefore \quad \gamma_r=\gamma_a+3 \alpha_g\)
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