1
AP EAPCET 2024 - 19th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
One mole of a gas having $\gamma=\frac{7}{5}$ is mixed with one mole of a gas having $\gamma=\frac{4}{3}$. The value of $\gamma$ for the mixture is ( $\gamma$ is the ratio of the specific heats of the gas)
A
$\frac{5}{11}$
B
$\frac{11}{15}$
C
$\frac{15}{11}$
D
$\frac{5}{13}$
2
AP EAPCET 2024 - 19th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
A Carnot heat engine has an efficiency of $10 \%$. If the same engine is worked backward to obtain a refrigerator, then the coefficient of performance of the refrigerator is
A
8
B
9
C
5
D
6
3
AP EAPCET 2024 - 19th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The rms velocity of a gas molecules oí mass $m$ at a given temperature is proportional to
A
$\mathrm{m}^{\circ}$
B
$m$
C
$\sqrt{m}$
D
$\frac{1}{\sqrt{m}}$
4
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Match the following.
(a) Thermal conductivity (i) $\left[\mathrm{MLT}^{-3} \mathrm{~K}^{-1}\right]$
(b) Boltzmann constant (ii) $\left[M^0 L^2 T^{-2} K^{-1}\right]$
(c) Latent heat (iii) $\left[M L^2 T^{-2} K^{-1}\right]$
(d) Specific heat (iv) $\left[M^0 L^2 T^{-2}\right]$
A
$a-i, b-iii, c-iv, d-ii$
B
$a-i, b-ii, c-iv, d-iii$
C
$a-iii, b-ii, c-i, d-iv$
D
$a-ii, b-i, c-iii, d-iv$
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