1
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A horizontal platform with a small object placed on it executes a linear S.H.M. in the vertical direction. The amplitude of oscillation is 40 cm . What should be the least period of these oscillations, so that the object is not detached from the platform? [Take $\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$]

A
$0.2 \pi \mathrm{~s}$
B
$0.3 \pi \mathrm{~s}$
C
$0.4 \pi \mathrm{~s}$
D
$0.5 \pi \mathrm{~s}$
2
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, 'I' is the minimum intensity and ' $I_1$ ' is the intensity at a point where the path difference is $\frac{\lambda}{4}$ where ' $\lambda$ ' is the wavelength of light used. The ratio $I_1 \mathrm{I}_1$ is (Intensities of the two interfering waves are same) $\left(\cos 0^{\circ}=1, \cos 90^{\circ}=0\right)$

A
0
B
4
C
3
D
2
3
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a ray of light, the critical angle is minimum, when it travels from

A
glass to air
B
air to glass
C
glass to water
D
water to glass
4
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Four moles of hydrogen, two moles of helium and one mole of water vapour form an ideal gas mixture. $\left[C_{\mathrm{v}}\right.$ for hydrogen $=\frac{5}{2} R, C_v$ for helium $=\frac{3}{2} R, \quad C_{\mathrm{v}}$ for water vapour $\left.=3 \mathrm{R}\right]$ What is the molar specific heat at constant pressure of the mixture?

A
$\frac{11}{3} \mathrm{R}$
B
$\frac{23}{7} R$
C
$\frac{16}{7} R$
D
$\frac{23}{3} R$
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