ATM से जुडे तथ्य | amazing U0001f92f facts about ATM

The correct statement about F is

The correct statement about F is

A stone of weight W is thrown straight up from the ground with an intial speed u. If a drag force of constant magnitude f acts - on the same through out its flight , the speed of stone just before reaching the ground is (1) usqrt((W-f)/W) (2) usqrt((W+f)/f) (3) u sqrt((W+f)/(W-f)) (4) u sqrt((W-f)/(W+f))

At 300 K and 1.00 atm. pressure, the density of gaseous HF is 3.17 gL^(-1) . Which of the following facts, is supported by the given data ?

18 g glucose and 6 g urea are dissolved in 1 L aqueous solution at 27^(@)C . The osmotic pressure of the solution will be a. 8.826 atm , b. 4.926 atm ,c. 2.92 atm , d. 4.42 atm

Assertion : The focal length of the mirrorr is f and distance of the object from the focus is u , the magnification of the mirror is f//u . Reason : Magnification =("Size of the image")/("Size of object" )