1
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A sample of oxygen gas and a sample of hydrogen gas both have the same mass, same volume and the same pressure. The ratio of their absolute temperature is (Molecular wt. of $\mathrm{O}_2 \& \mathrm{H}_2$ is 32 and 2 respectively)

A
$1: 4$
B
$1: 8$
C
$16: 1$
D
$12: 1$
2
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The P-V graph of an ideal gas, cycle is shown. The adiabatic process is described by the region

MHT CET 2024 2nd May Morning Shift Physics - Heat and Thermodynamics Question 89 English

A
AB and BC
B
AB and CD
C
AD and BC
D
BC and CD
3
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Railway track is made of steel segments separated by small gaps to allow for linear expansion. The segment of track is 10 m long when laid at temperature $17^{\circ} \mathrm{C}$. The maximum temperature that can be reached is $45^{\circ} \mathrm{C}$. Increase in length of the segment of railway track is ' $x$ ' $\times 10^{-5} \mathrm{~m}$. The value of ' $x$ ' is $\left(\alpha_{\text {steel }}=\right.$ $\left.1.2 \times 10^{-5} /{ }^{\circ} \mathrm{C}\right)$

A
168
B
204
C
336
D
530
4
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

At S.T.P., the mean free path of gas molecule is 1500 d , where ' $d$ ' is diameter of molecule. What will be the mean free path at 373 K at constant volume?

A
1500 d
B
$\frac{373}{273} \times 1500 \mathrm{~d}$
C
$\frac{273}{373} \times 1500 \mathrm{~d}$
D
$\sqrt{\frac{373}{273}} \times 1500 \mathrm{~d}$
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