1
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The temperature gradient in a rod of length $$75 \mathrm{~cm}$$ is $$40^{\circ} \mathrm{C} / \mathrm{m}$$. If the temperature of cooler end of the rod is $$10^{\circ} \mathrm{C}$$, then the temperature of hotter end is

A
$$50^{\circ} \mathrm{C}$$
B
$$40^{\circ} \mathrm{C}$$
C
$$35^{\circ} \mathrm{C}$$
D
$$25^{\circ} \mathrm{C}$$
2
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A black body radiates maximum energy at wavelength '$$\lambda$$' and its emissive power is '$$E$$'. Now due to a change in temperature of that body, it radiates maximum energy at wavelength $$\frac{\lambda}{3}$$. At that temperature emissive power is

A
$$16: 1$$
B
$$256: 1$$
C
$$81: 1$$
D
$$128: 1$$
3
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For polyatomic gases, the ratio of molar specific heat at constant pressure to constant volume is ( $$\mathrm{f}=$$ degrees of freedom)

A
$$\frac{2+\mathrm{f}}{3+\mathrm{f}}$$
B
$$\frac{3+\mathrm{f}}{2+\mathrm{f}}$$
C
$$\frac{3+\mathrm{f}}{4+\mathrm{f}}$$
D
$$\frac{4+\mathrm{f}}{3+\mathrm{f}}$$
4
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Select the WRONG statement from the following. For an isothermal process

A
Energy exchanged is used to do work
B
Perfect thermal equilibrium with environment
C
Equation of state PV is not constant.
D
No change internal energy.
MHT CET Subjects
EXAM MAP