2019 MHT-CET PCM SET - 03 — MHT - CET STD 12 Science — Question

Eight identical drops of water falling through air with uniform velocity of 10 cm/s combine to form a single drop of big size, then terminal velocity of the big drop will be ______.

Due to which of the following reason lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled?

In an antibody molecule, the antigen-binding site is present on ____________.

Match the items given in Column I (Valves) with those in Column II (Location) and select the correct option.

	Column I		Column II
i.	Tricuspid valve	a.	Between left atrium and left ventricle
ii.	Bicuspid valve	b.	Between right ventricle . and pulmonary artery.
iii.	Semilunar valve	c.	Between right atrium and right ventricle

A body slides down a smooth inclined plane having angle θ and reaches the bottom with velocity v. If a body is a sphere, then its linear velocity at the bottom of the plane is

A typical fat molecule is made up of ____________.

The following statement is CORRECT EXCEPT:

A ladder 20 ft Jong leans against a vertical wall. The top-end slides downwards at the rate of 2 ft per second. The rate at which the lower end moves on a horizontal floor when it is 12 ft from the wall is ______