1
MHT CET 2023 11th May Morning Shift
+1
-0

If a gas is compressed isothermally then the r.m.s. velocity of the molecules

A
decreases.
B
increases.
C
remains the same.
D
first decreases and then increases.
2
MHT CET 2023 10th May Evening Shift
+1
-0

A black body radiates maximum energy at wavelength '$$\lambda$$' and its emissive power is 'E' Now due to change in temperature of that body, it radiates maximum energy at wavelength $$\frac{2 \lambda}{3}$$. At that temperature emissive power is

A
$$\frac{81}{16}$$
B
$$\frac{27}{32}$$
C
$$\frac{18}{10}$$
D
$$\frac{9}{4}$$
3
MHT CET 2023 10th May Evening Shift
+1
-0

Which of the following graphs between pressure (P) and volume (V) correctly shows isochoric changes?

A
D
B
B
C
C
D
A
4
MHT CET 2023 10th May Evening Shift
+1
-0

A metal rod $$2 \mathrm{~m}$$ long increases in length by $$1.6 \mathrm{~mm}$$, when heated from $$0^{\circ} \mathrm{C}$$ to $$60^{\circ} \mathrm{C}$$. The coefficient of linear expansion of metal rod is

A
$$1.33 \times 10^{-5} /{ }^{\circ} \mathrm{C}$$
B
$$1.66 \times 10^{-5} /{ }^{\circ} \mathrm{C}$$
C
$$1.33 \times 10^{-3} /{ }^{\circ} \mathrm{C}$$
D
$$1.66 \times 10^{-3} /{ }^{\circ} \mathrm{C}$$
EXAM MAP
Medical
NEET