Osmosis: ⇒ The movement of solvent molecules through a semi-permeable membrane (kept between a pure solvent and its solution) from pure solvent to solution is osmosis. ⇒ The movement of solvent molecules continues till equilibrium is reached. ⇒ Solvent molecules move from lower concentration solution to higher concentration solution. Osmotic pressure: ⇒ The excess pressure Read more about Osmosis & Osmotic pressure[…]
Case i: Three vessel have different shapes, but the same base area and the same weight when empty. They are filled with water to the same level.a) Are the water pressure at the bottom of the each vessel are same? If not, which is larger and which is smaller? Solution: As, P = Patm + Read more about Hydrostatic Paradox[…]
Puzzle 1: What number replaces the question mark?Answer: 6 Explanation: 5 x 6 + 2 = 32 7 x 6 + 2 = 44 Puzzle 2: what does the below mathematical rebus means?Answer: For a change Puzzle 3: What number replaces the question mark?Answer: (a x b) (a x c) (a x b + a x c – b) 5 + Read more about Math Puzzle 7 [With Answers][…]
Evaluation of trigonometric limits: In order to evaluate trigonometric limits the following results are very useful: sinx/x = 1 tanx/x = 1 sin⁻¹x/x = 1 tan⁻¹x/x = 1 sinx⁰/x = π/180 sin (x – a)/(x – a) = 1 tan (x – a)/(x – a) = 1 |sinx|/x does not exist |tanx|/x does not exist Read more about Exponential and Logarithmic Limits[…]
Puzzle 1: What number replaces the question mark? Puzzle 2: what does the below mathematical rebus means?Puzzle 3: What number replaces the question mark?Puzzle 4: What number replaces the question mark? 5, 7, 11, 13, 17, ? Puzzle 5: What number replaces the question mark? IF 1 + 1 = 5 2 + 2 = 20 3 + 3 Read more about Math Puzzle 7[…]
Teaser 1: What room can no one enter? Answer: A mushroom Teaser 2: When is a man drowned, but still not wet? Answer:When he’s trapped in quicksand Teaser 3: The eight of us go forth not back to protect our king from a foes attack? Answer: Chess pawns Teaser 4: If you look at the number on my Read more about Brain Teasers 7 (With Answers)[…]
Properties of solution that depend on the ratio of no: of solute particles to the total no: of particles in the solution. 1. Relative lowering of vapour pressure: ⇒ Vapour pressure of solvent in solution is less than that of pure solvent. According to Raoult’s law PA = XA x P°A ⇒ So the reduction Read more about Colligative Properties[…]
In order to describe the motion of a fluid, in principle one might apply Newton’s laws to a particle (a small volume element of fluid) and follow its progress in time. This is difficult approach. Instead, we consider the properties of the fluid, such as velocity pressure, at fixed points in space. In order to Read more about Equation of Continuity[…]
Teaser 1: What room can no one enter? Teaser 2: When is a man drowned, but still not wet? Teaser 3: The eight of us go forth not back to protect our king from a foes attack? Teaser 4: If you look at the number on my face you won’t find thirteen anyplace? Teaser 5: Read more about Brain Teasers 7[…]
i. If, f, g ate two continuous functions at a point a of their common domain D, then f ± g. fg are continuous at a point, then f/g is also continuous at a.ii. If f is continuous at a and f(a) ≠ 0, then there exists an open interval (a – δ, a + Read more about Properties of Continuous functions[…]