1
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A fluid of density '$$\rho$$' is flowing through a uniform tube of diameter '$$d$$'. The coefficient of viscosity of the fluid is '$$\eta$$', then critical velocity of the fluid is

A
inversely proportional to '$$\eta$$'
B
directly proportional to '$$\eta$$'
C
directly proportional to '$$\mathrm{d}$$'
D
directly proportional to '$$\rho$$'
2
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The self inductance '$$L$$' of a solenoid of length '$$l$$' and area of cross-section '$$\mathrm{A}$$', with a fixed number of turns '$$\mathrm{N}$$' increases as

A
both $$l$$ and $$A$$ increase
B
$$l$$ decreases and $$\mathrm{A}$$ increases
C
$$l$$ increases and A decreases
D
both $$l$$ and A decrease
3
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A transverse wave in a medium is given by $$y=A \sin 2(\omega t-k x)$$. It is found that the magnitude of the maximum velocity of particles in the medium is equal to that of the wave velocity. What is the value of $$A$$ ?

A
$$\frac{2 \lambda}{\pi}$$
B
$$\frac{\lambda}{\pi}$$
C
$$\frac{\lambda}{2 \pi}$$
D
$$\frac{\lambda}{4 \pi}$$
4
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The radius of the orbit of a geostationary satellite is (mean radius of earth is '$$R$$', angular velocity about own axis is '$$\omega$$' and acceleration due to gravity on earth's surface is '$$g$$')

A
$$\left(\frac{\mathrm{gR}^2}{\omega^2}\right)^{\frac{1}{3}}$$
B
$$\left(\frac{\mathrm{gR}^2}{\omega^2}\right)^{\frac{2}{3}}$$
C
$$\left(\frac{\mathrm{gR}^2}{\omega^2}\right)^{\frac{1}{2}}$$
D
$$\frac{\mathrm{gR}^2}{\omega^2}$$
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