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05 Mar 2020: UPSC Exam Comprehensive News Analysis

5 March 2020 CNA:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related POLITY AND... View Article

Economy This Week (10th Feb to 23rd Feb 2020)

Economy is an important part of the UPSC prelims and mains exams; this series titled ‘Economy This Week’ has been initiated to... View Article

04 March 2020: PIB Summary & Analysis

Read the daily PIB update and stay up-to-date on current affairs for the UPSC exam. March 4th, 2020 PIB:- Download PDF Here... View Article

04 March 2020: The Hindu Analysis

UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 4th March 2020. Important news and... View Article

Derive the Relation Between Molarity and Molality

Molarity Molarity (M) is defined as the number of moles of solute per litre of solution. Molarity = moles of... View Article

Why are Non-polar molecular solids called as solids when they are either liquids or Gases?

The non-polar molecular solids are liquids or gases and they are called solids because they comprise of atoms or molecules... View Article

Explain Why Cp is Greater Than Cv

The molar heat capacity at constant pressure is represented by Cp. While Cv is the representation of molar heat capacity... View Article

Define Polymerisation

The polymerisation is defined as the chemical process in which the monomers are joined together to form polymers. Normally, it... View Article

Spin multiplicity of nitrogen in the ground state.

Multiplicity is defined as the energy level at 2S + 1 where S is the total spin angular momentum. When... View Article

Equivalent Weight of H₃PO₄

Answer: An equivalent weight of a solution is defined as the molecular weight of the solute divided by the valence... View Article

Find the difference in the value of the vector, if the two with equal magnitude “P” are inclined at an angle such that the difference in the magnitude of the resultant and magnitude of either vector is 0.732 times either vector. Also, the angle between them is increased to half of its initial.

\(\begin{array}{l}left | underset{R}{rightarrow} right |\end{array} \) – P = 0.732P \(\begin{array}{l}left | underset{R}{rightarrow} right | = sqrt{P^{2}+P^{2}+2P^{2}cos;theta }\end{array} \) \(\begin{array}{l}left... View Article

The velocity of an aeroplane is 600 km/h which is flying horizontally and at a height of 1960m. A bomb is released from the aeroplane when it vertically reaches point A. At point B, the bomb is struck. What is the distance between AB?

The initial horizontal velocity of the aeroplane is equal to the speed of the aeroplane. Therefore, it can be said... View Article

Calculate the Angle Between The Two Forces, If The Resultant Force Gets Doubled When The First Force is Doubled

Given First force = 3P Second force =2P Resultant force is= R The first force doubles then the resultant force... View Article

Calculate the smaller force if the bigger force is 40N and the resultant force is perpendicular to the smaller force. The two forces are acting at an angle of 120°

Assume P to be the greater force and Q to be the smaller force and their resultant force is R.... View Article

Electric current is a scalar quantity but it possesses magnitude and direction. Why?

Answer: Electric Current is the rate of flow of electrons in a conductor. The SI Unit of electric current is... View Article

Differentiate Between the Center of Gravity and Centroid

The difference between the center of gravity and centroid are as follows: (a) The center of gravity is the point... View Article

The two velocities of a train with constant acceleration are u and v respectively. What is the velocity at which the middle point of the train passes through the same point?

v2 – u2 = 2as v2 = u2 + 2as Equation (1) \(\begin{array}{l}a = v_^{2} -\ frac{u_^{2}}{2s}\end{array} \) Let s... View Article

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