MHT CET 2022 11TH AUGUST EVENING SHIFT

What is the total volume occupied by atoms in bcc unit cell ?

The variance and mean of 15 observations are respectively 6 and 10 . If each observation is increased by 8 then the new variance and new mean of resulting observations are respectively

A shell is fired at an angle of \(30^{\circ}\) to the horizontal with velocity \(196 \mathrm{~m} / \mathrm{s}\). The time of flight is

$$\left[\sin 30^{\circ}=\frac{1}{2}=\cos 60^{\circ}\right]$$

What is the heat of formation of \(\mathrm{HCl}_{(\mathrm{g})}\) from following equation?

$$\mathrm{H}_{2(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{g})} \rightarrow 2 \mathrm{HCl}_{(\mathrm{g})} \Delta_{\mathrm{f}} \mathrm{H}=-194 \mathrm{~kJ}$$

The incidence of occupational disease in an industry is such that the workmen have a \(10 \%\) chance of suffering from it. The probability that out of 5 workmen, 3 or more will contract the disease is

A door \(1.2 \mathrm{~m}\) wide requires a force of \(1 \mathrm{~N}\) to be applied perpendicular at the free end to open or close it. The perpendicular force required at a point \(0.2 \mathrm{~m}\) distant from the hinges for opening or closing the door is