The Fresnel biprism demonstrates the interference of light. It is a variation of the famous Young’s double-slit experiment. Two thin prisms were... View Article
The mechanism of the diode was discovered in the year 1874 by Ferdinand Brown. Brown connected the metal needle with the metal sulfide that... View Article
Meissner effect is the expulsion of the magnetic field from the interior of the superconducting material before its transition from the normal... View Article
Trigonometry was developed by the ancient greeks. Hipparchus was the greek astronomer who formulated the table of values for the trigonometric... View Article
Resonance energy is the amount of energy required to convert the delocalized structure into a stable contributing structure. Delocalization... View Article
On a global average, the Earth’s magnetic field is weakened by 9% in the last 200 years. A large region between Africa and South America has a... View Article
Mass is the amount of substance present in the object. It is a quantitative measure of inertia. The mass of the object can be calculated using... View Article
Saturn has the largest number of natural satellites or moons. It has 82 natural satellites with known orbits. Most of the satellites are very... View Article
Electrons give the atoms the volume, shape etc. Without the electrons, the atoms will be positively charged. Without the electrons, the atoms... View Article
From all the theories and the experiments done so far, the electron is a fundamental subatomic particle that cannot be further divided into other... View Article
The resistors that have a defined value of the resistance are called fixed resistors. The resistance of fixed resistors is not adjustable. The... View Article
Light is the result of electric field and magnetic field vibrating perpendicular to each other and moving through space at the speed of 3 x 108... View Article
The light from two electric bulbs cannot be coherent. The time and direction of the emission of individual photons from two different electric... View Article
We generally expect the solid to be heavier than the liquid form. It is not so with frozen water or ice. The ice floats on water because the... View Article
1) n sinn–1 x sin (n + 1)x 2) n sinn-1 x cos (n – 1)x 3) n sinn–1 x cos nx 4) n sinn–1 x cos(n + 1) x Solution: y = sinn x cos nx... View Article
1) tan 3θ/2 2) – tan 3θ/2 3) cot 3θ/2 4) – cot 3θ/2 Solution: x = 2 cos θ - cos 2θ y = 2 sin θ - sin 2θ Differentiate w.r.t θ... View Article
