When an object is polarised there will be a redistribution of the centres of the positive and negative charges within the object. There is a... View Article
Light does not travel as wavy lines, it travels in a straight line. The particles are vibrated perpendicular to the direction of propagation of... View Article
The centre of gravity of a uniform rod will lie at the middle point. Centre of gravity is an imaginary point at which weight of the object is... View Article
Yes, Young’s modulus is the measure of the stiffness of the object. In other words, the resistance of the object to elastic deformation. Young’s... View Article
The potentiometer will not show the balanced point if the emf of the battery that has to be tested is greater than the standard cell. The common... View Article
When an electron jumps from lower to higher orbit the energy of the electron increases. The extra energy required for the electron to go from... View Article
According to the Heisenberg uncertainty principle, position and momentum of the atom cannot be determined simultaneously. The Heisenberg... View Article
The temperature of a gas is determined by the chaotic movement of the particles. When the temperature reduces the particles start moving slower.... View Article
Each shell can hold only a specific number of electrons. The general formula to determine the number of electrons is 2(n2), where n is the shell... View Article
Yes, hydrogen is harmful to humans. If hydrogen is inhaled in small concentrations it can cause symptoms like headache, nausea, irritation in... View Article
We are surrounded by the sources of radiations. The cosmic rays enter the earth’s atmosphere from outer space. The largest source of radiation... View Article
Although gravity is infinite in a black hole the stretching force is weak. Therefore, there are chances that the person will not get killed. Time... View Article
The Carnot cycle is reversible whereas the real engines are not reversible due to different reasons like friction, heat transfer to the... View Article
The entropy of a closed system cannot be reversed, meaning it cannot be decreased. According to the second law of thermodynamics, the entropy of... View Article
Poisson’s ratio is the ratio of lateral strain to the longitudinal strain within the elastic limit. The lateral strain is the change in the... View Article
Most of the coffee varieties are acidic in nature. The acidity is determined by the pH value. Any solution with a pH value between 0 and 7 is... View Article
Pure water is neither an acid nor a base. Water is neutral. In water, there is a balance between the hydroniums and hydroxyls so they cancel each... View Article
A truth table is a basic method to describe the Boolean function. The Boolean variables can either be 0 or 1. The inputs and the output in a... View Article
The electrons are extremely small and nobody has determined its size but the radius of the electron was calculated to be equal to 2.8179 x 10-15... View Article
