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General Knowledge for Competitive Exams
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Weathering and Erosion

If a rock particle is loosened, chemically or mechanically, but remains there itself, it is called weathering.

What is a Volcano?

Literally, the word volcano comes from the name of the Roman God of Fire, Vulcan.

The Solar System

The Solar System constitutes the Sun and the objects that orbit it directly as well as those which orbit other objects that orbit it directly.

Standard Time and Time Zones

Standard Time is the harmony of clocks in various geographical locations within a time zone to a common time standard.

Space Explorations

This covers the telescopic study of space by astronomers, and the physical investigation by robotic probes as well as human spacecraft.

Origin of Universe: Big Bang Theory

It is believed that universe originated around 15 billion years ago.

What is a Black Hole?

A black hole is defined as an area of space with a gravitational field extremely severe that no matter or radiation can escape.

Eclipses

An eclipse of the Sun takes place when the Moon comes unswervingly between the Sun & the Earth so that the Earth lies in the silhouette of the Moon.

Asteroids, Comets, Meteorites

Asteroids are rocky remains left over from the formation of solar system. Comets are comparatively small, flimsy, erratically shaped bodies.

Largest Islands of the world

Let us have a look at the largest islands of the world. Australia is broadly considered as the continental landmass, not an island. In fact, it unquestionably is the largest island, with the size of 7,618,493 sq km.

Important tribes across the world and their homeland

Here you can find the list of important tribes and their homeland.

Continents: Lowest Points

A continent is one of several very large landmasses on Earth.

Continents: Highest Points

Continents are understood to be large, continuous, discrete masses of land, ideally separated by expanses of water.

Continents: Number

The continents are the great land masses of the earth. There are seven continents on Earth.

Magnetic Field

 

A magnet produces a vector field, the magnetic field, at all points in the space around it. It can be defined by measuring the force the field exerts on a moving charged particle, such as an electron.  

 

Lithosphere

The lithosphere is the outer solid part of the earth, including the crust and uppermost mantle.

Cryosphere

The Cryosphere is an Imperial space station in the Music star system, which is considered to be of major strategic importance.

Tectonic Plates

A tectonic plate is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.

Atmospheric Circulation

Atmospheric circulation is a movement of air at a larger scale by which the earth's surface is covered and distributed over by thermal energy

Rutherford Scattering

Rutherford Scattering is a phenomenon explained by Ernest Rutherford in 1911

Compton Scattering

Compton observed the scattering of x-rays from electrons in a carbon target and found scattered x-rays with a longer wavelength than those incident upon the target.

 

Electromagnetic Scattering

Electromagnetic scattering is the physical effect of an electromagnetic wave, such as light or radio waves, hitting an object

Scattering Theory

In mathematics and physics, scattering theory is a framework for studying and understanding the scattering of waves and particles.

Single and Multiple Scattering

Single and multiple scattering contributions to the circumsolar radiation along the almucantar and sun vertical have been computed by a Gauss-Seidel solution to the radiative transfer equation.

Dielectric Constant and Momentum

The dielectric constant is the relative permittivity of a dielectric material. It is an important parameter in characterizing capacitors. Momentum is a corner stone concept in Physics. It is a conserved quantity.

 

Refractive Index: Lenses

 

Thinner, lighter high-index lenses are especially recommended if you have a strong eyeglass prescription for nearsightedness, farsightedness or astigmatism.

 

Refraction and Reflectivity

The refractive index is retrieved from direct phase and amplitude measurements for transmission and reflection, which are all in excellent agreement with simulations. The reflection angle is equal to the incidence angle, and the amount of light that is reflected is determined by the reflectivity of the surface.

Refractive Index: Phase Speed

The refractive index can be defined as the ratio of the speed of light in vacuum and the phase speed of light in a material.

Lake: Dhebar Lake

Dhebar Lake (also known as Jaisamand Lake) is Asia's second-largest artificial lake (is considered largest now, since the Upper lake in Bhopal, India is the largest artificial lake in Asia, but is almost dried up due to lack of rainfall)

Lake: Sattal Lake

Sattal or Sat Tal is an interconnected group of seven freshwater lakes situated in the Lower Himalayan Range near Bhimtal, a town of the Nainital district in Uttarakhand, India

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