1
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Two different metal bodies A and B of equal mass are heated at a uniform rate under similar conditions. The variation of temperature of the bodies is graphically represented as shown in the figure. The ratio of specific heat capacities is :

JEE Main 2021 (Online) 25th July Morning Shift Physics - Heat and Thermodynamics Question 161 English
A
$${8 \over 3}$$
B
$${3 \over 8}$$
C
$${3 \over 4}$$
D
$${4 \over 3}$$
2
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
What will be the average value of energy for a monoatomic gas in thermal equilibrium at temperature T?
A
$${3 \over 2}{k_B}T$$
B
$${k_B}T$$
C
$${2 \over 3}{k_B}T$$
D
$${1 \over 2}{k_B}T$$
3
JEE Main 2021 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which of the following graphs represent the behavior of an ideal gas? Symbols have their usual meaning.
A
JEE Main 2021 (Online) 20th July Evening Shift Physics - Heat and Thermodynamics Question 167 English Option 1
B
JEE Main 2021 (Online) 20th July Evening Shift Physics - Heat and Thermodynamics Question 167 English Option 2
C
JEE Main 2021 (Online) 20th July Evening Shift Physics - Heat and Thermodynamics Question 167 English Option 3
D
JEE Main 2021 (Online) 20th July Evening Shift Physics - Heat and Thermodynamics Question 167 English Option 4
4
JEE Main 2021 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
The correct relation between the degrees of freedom f and the ratio of specific heat $$\gamma$$ is :
A
$$f = {2 \over {\gamma - 1}}$$
B
$$f = {2 \over {\gamma + 1}}$$
C
$$f = {{\gamma + 1} \over 2}$$
D
$$f = {1 \over {\gamma + 1}}$$
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