1
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+2
-0

If both mean and variance of 50 observations $$x_1, x_2, \ldots \ldots, x_{50}$$ are equal to 16 and 256 respectively, then mean of $$\left(x_1-5\right)^2,\left(x_2-5\right)^2, \ldots \ldots\left(x_{50}-5\right)^2$$ is

A
357
B
387
C
377
D
397
2
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+2
-0

The angle between the line $$\frac{x+1}{2}=\frac{y-2}{1}=\frac{z-3}{-2}$$ and plane $$x-2 y-\lambda z=3$$ is $$\cos ^{-1}\left(\frac{2 \sqrt{2}}{3}\right)$$, then value of $$\lambda$$ is

A
$$\sqrt{\frac{3}{5}}$$
B
$$\frac{5}{\sqrt{3}}$$
C
$$\sqrt{\frac{5}{3}}$$
D
$$\frac{1}{\sqrt{3}}$$
3
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The magnetic flux through a circuit of resistance '$$R$$' changes by an amount $$\Delta \phi$$ in the time $$\Delta t$$. The total quantity of electric charge '$$Q$$' which passes during this time through any point of the circuit is

A
$$-\frac{\Delta \phi}{\Delta t}+R$$
B
$$\frac{\Delta \phi}{\mathrm{R}}$$
C
$$\frac{\Delta \phi}{\Delta t}$$
D
$$\frac{\Delta \phi}{\Delta t} \times R$$
4
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A beam of light of wavelength $$600 \mathrm{~nm}$$ from a distant source falls on a single slit $$1 \mathrm{~mm}$$ wide and the resulting diffraction pattern is observed on a screen $$2 \mathrm{~m}$$ away. The distance between the first dark fringe on either side of the central bright fringe is

A
1.2 mm
B
2.4 mm
C
1.2 cm
D
2.4 cm
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