1
MHT CET 2021 20th September Evening Shift
+1
-0

Two stars 'P' and 'Q' emit yellow and blue light respectively. The relation between their temperatures $$\left(\mathrm{T}_{\mathrm{P}}\right.$$ and $$\left.\mathrm{T}_{\mathrm{Q}}\right)$$ is

A
$$\mathrm{T_P=T_Q}$$
B
$$\mathrm{T}_{\mathrm{P}}=\frac{\mathrm{T}_{\mathrm{Q}}}{2}$$
C
$$\mathrm{T}_{\mathrm{P}}>\mathrm{T}_{\mathrm{Q}}$$
D
$$\mathrm{T}_{\mathrm{P}}<\mathrm{T}_{\mathrm{Q}}$$
2
MHT CET 2021 20th September Morning Shift
+1
-0

A perfectly black body emits a radiation at temperature 'T$$_1$$' K. If it is to radiate at 16 times this power, its temperature 'T$$_2$$' K should be

A
8T$$_1$$
B
4T$$_1$$
C
2T$$_1$$
D
16T$$_1$$
3
MHT CET 2021 20th September Morning Shift
+1
-0

One mole of an ideal gas expands adiabatically at constant pressure such that its temperature $$T \propto {1 \over {\sqrt V }}$$. The value of $$\gamma$$ for the gas is ($$\gamma = {{{C_p}} \over {{C_v}}},V =$$ Volume of the gas)

A
1.8
B
1.5
C
1.3
D
1.4
4
MHT CET 2021 20th September Morning Shift
+1
-0

On an imaginary linear scale of temperature (called 'W' scale) the freezing and boiling points of water are 39$$^\circ$$ W and 239$$^\circ$$ W respectively. The temperature on the new scale corresponding to 39$$^\circ$$C temperature on Celsius scale will be

A
139$$^\circ$$ W
B
78$$^\circ$$ W
C
117$$^\circ$$ W
D
200$$^\circ$$ W
MHT CET Subjects
Physics
Mechanics
Optics
Electromagnetism
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Calculus
Coordinate Geometry
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