Karthi Blog

CAR JACK The most common form is a  car jack ,  floor jack  or garage  jack , which lifts vehicles so that maintenance can be performed.  Jacks  are usually rated for a maximum lifting capacity (for example, 1.5 tons or 3 tons).

Earth's Atmospheric Layers Troposphere The troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region. Stratosphere The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer , which absorbs and scatters the solar ultraviolet radiation, is in this layer.                       Mesosphere The mesosphere starts just above the stratosphere and extends to 85 kilometers (53 miles) high. Meteors burn up in this layer Thermosphere The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high. Aurora and satellites occur in this lay er. Ionosphere The ionosphere is an abundant layer of electrons and ionized atoms and molecules that stretches from about 48 kilometers (30 miles) above the surface to...

charteredclub.com What is Financial Year, Fiscal Year & Assessment Year in India The Balance Sheet and Income statement of companies across the Globe are usually prepared for a period of 1 year. However, the date from which this period starts varies from country to country. In India, this 1 year period starts from 1 st April and ends on 31 st March . This period in which the income is earned is known as the Financial Year or Fiscal Year. The income tax returns are filed and taxes for a company are usually paid in the next year after the end of the Financial Year. This next year in which the income is assessed to tax is called as the Assessment Year . So in case the accounts are being prepared for the year starting 1 st April 2013 and ending on 31 st March 2014, this period would be called Financial Year 2013-14. And this income would be assessed to tax in the next year and this period would be called as Assessm...

What is a Lens A lens is a transparent object that transmits light across it, and its working principle depends on the   law of refraction (Snell’s law) . Applications: Concave Lens help with Far-Sight Convex Lens help with Near-Sight

 What is a Mirror A mirror is most often made with a highly polished surface of a metal, placed behind a glass. A mirror works by reflecting light that falls on it according to the   law of reflection .   CONVEX MIRROR CONCAVE MIRROR HINT : CON CAVE, It looks like a cave

What Is an Eclipse? An eclipse takes place when one heavenly body such as a moon or planet moves into the shadow of another heavenly body .  There are two types of eclipses on Earth:  An eclipse of the moon(Lunar Eclipse) and  An eclipse of the sun(Solar Eclipse) What Is a Lunar Eclipse? Sometimes Earth moves between the sun and the moon. When this happens , Earth blocks the sunlight that normally is reflected by the moon. (This sunlight is what causes the moon to shine.) Instead of light hitting the moon’s surface, Earth's shadow falls on it. This is an eclipse of the moon -- a lunar eclipse .  A lunar eclipse can occur only when the moon is full . A lunar eclipse can be seen from Earth at night . There are two types of lunar eclipses: total lunar eclipses and partial lunar eclipses. A total lunar eclipse occurs when the moon and the sun are on exact opposite sides of Earth. Although the moon is in Earth's shadow, some sunlight r...

Kinetic energy  is energy possessed by a body by virtue(Behaviour) of its  movemen t . Potential energy  is the energy possessed by a body by virtue of its  position  or  state .  While kinetic energy of an object is relative to the state of other objects in its environment, potential energy is completely independent of its environment. Stored energy is called ‘ potential energy ’ and moving energy is called ‘ kinetic energy ’. EXAMPLES

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