2019 MHT-CET PCB SET - 01 — MHT - CET STD 12 Science — Question

Identify the criterion for movement of DNA fragments on agarose gel during gel electrophoresis.

Enzymes can react with acidic or basic substances due to their ______ nature.

An ammeter of resistance 20Q gives full-scale deflection when 1 mA current flows through it. What is the maximum current that can be measured by connecting 4 resistors each of 16Q in parallel with the ammeter?

A soap bubble of radius 2.0 cm is formed inside another soap bubble of radius 4.0 cm. The radius of another soap bubble which has the same pressure difference as that between the inside of the smaller and outside of large soap bubble, in metres is ______

After the industrial revolution in Great Britain in 1845 which of the following occurred?

If Xis a.r.v. with c.d.f F (x) and its probability distribution is given by

X = x	- 1.5	-0.5	0.5	1.5	2.5
P(X = x)	0.05	0.2	0.15	0.25	0.35

then, F(1.5) - F(- 0.5) = ?

Which of the following compounds does not react with bromine in alkaline medium?

A metal wire of density 'p' floats on water surface horizontally. If it is NOT to sink in water then maximum radius of wire is proportional to ______.

(T = surface tension of water, g = gravitational acceleration)