1
AP EAPCET 2024 - 20th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
A Carnot engine has the same efficiency between 800 K and 500 K and $x>600 \mathrm{~K}$ and 600 K . The value of $x$ is
A
1000 K
B
960 K
C
846 K
D
754 K
2
AP EAPCET 2024 - 20th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
When the temperature of a gas is raised from $27^{\circ} \mathrm{C}$ to $90^{\circ} \mathrm{C}$. The increase in the rms velocity of the gas molecule is
A
$10 \%$
B
$15 \%$
C
$20 \%$
D
$17.5 \%$
3
AP EAPCET 2024 - 19th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
If ambient temperature is 300 K , the rate of cooling at 600 K is $H$. In the same surroundings, the rate of cooling at 900 K is
A
$\frac{16}{3} \mathrm{H}$
B
2 H
C
3 H
D
$\frac{2}{3} \mathrm{H}$
4
AP EAPCET 2024 - 19th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
An ideal heat engine operates in Carnot cycle between $127^{\circ} \mathrm{C}$ and $27^{\circ} \mathrm{C}$. It absorbs $5 \times 10^4 \mathrm{Cal}$ of heat at height temperature. Amount of heat converted to work is
A
$4.8 \times 10^4 \mathrm{cal}$
B
$2.4 \times 10^4 \mathrm{cal}$
C
$125 \times 10^4 \mathrm{cal}$
D
$6 \times 10^4 \mathrm{cal}$
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