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Heat Transfer Conduction, Convection and Radiation. - ppt download

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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Important dams in India Brief details of the important dams in India such as the Tehri Dam, Bhakra Dam, Hirakud Dam, Indira Sagar Dam, Nagarjuna Sagar dam, and Mettur dam is given below: The Tehri Dam  at Tehri in Uttarakhand which lies on the Bhagirathi River in India holds the rank of highest dam in India and one of the tallest dams in World . The Tehri Dam was built in the year 2006 with 1000 MW of hydro power generation capacity. It’s water is also used in the Municipal water supply and in irrigation works in the state of Uttarakhand. The Tehri dam is a 855 ft high rock and its length is 1886 ft, crest width of 66 ft and base width of 3701 ft which creates 2.6 cubic km of reservoir.          The Bhakra dam  is across the Sutlej River . It was described as “New Temple of Resurgent India” by Pandit Jawaharlal Nehru who was the first prime minister of independent India. The Bhakra Dam is in the village of Bhakra in Hi...

List of Important rivers in India Important rivers in India The rivers is played very important role in providing irrigation water, drinking water, electricity, easy & cheap transportation, other miscellaneous works has been done with the help of rivers. The important rivers of India are Ganga, Yamuna, Brahmaputra, Indus, Mahanadi, Godavari, Krishna, Kauery, Narmada and Tapti. A brief description of these rivers is given below:     Ganga:  Ganga is the most holy river according to Hindu. It has started from the Gangotri in the Himalayas an d poured into th e Bay of Bengal by travelling of around 2525 km . It is ranked 3 rd  largest river in the world. There are a number of cities had been developed across the banks of Ganga like Pataliputra, Kashi, Allahabad, Varanasi, Kolkata etc. It had also created the World’s largest delta in West Bengal named as Sundarban delta. Yamuna:  Yamuna River had originated from Yamunotri Glacier in the ...

Rowlatt Act, 1919 During the 1 st  World War, Indians started revolution and movements for forming self-Government. To subdue (To bring under control) these movements, the British Government formed    the Rowlatt committee in 1919 . The Rowlatt committee was named after Sydney Rowlatt, an English judge. It was said in the report of this commission that: (a) Nationalist newspapers should be banned. (b) Just on suspicion, any Indian may be arrested and imprisoned for indefinite period and without any trial Strong opposition was built up against this Anti-National Act. All the Indian members of the Central Law Committee raised their voices against this Act. Madanmohan Malavya, Mohammad Ali Jinnah, Mazhar ul Haque etc. resigned from the committee. Jinnah said, “The fundamental principle of justice have been imported and the constitutional rights of the people have been unrooted at a time when there is no real danger to the state”. Surendranath Banerjee and ...

Swadeshi Movement: Timeline and Important facts that you must know                     The Swadeshi Movement, now known as ' Make in India ' campaign was officially proclaimed on August 7, 1905 at the Calcutta Town Hall, in Bengal. Boycott movement was also launched along with the Swadeshi movement. The movements included using goods produced in India and burning British-made goods .. Bal Gandadhar Tilak encouraged Swadeshi and Boycott movement after the British government decided the partition of Bengal. Timeline of Swadeshi movement: In 1900, Bengal was the major province in British India. The Indian national movement began in Bengal and thus, Britishers decided to part Bengal.  When Lord Curzon, then Viceroy of India, announced the partition of Bengal in July 1905, Indian National Congress, initiated Swadeshi movement in Bengal. Swadeshi movement was launched as a protest movement which also gave a lead to th...