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Central board of secondary Education (CBSE) is one of the eminent and widely recognized boards of school education in India. Although CBSE got its present name in 1952, its origin can be traced back to 1921 when the U.P Board of High school and Secondary Education was set up. The importance of CBSE lies in its effort to impart a common education in this land of diverse culture and heritage called India. Thus, it has successfully evolved a common standard for all across the country. Its respect has grown over the years as it is trying to make education relevant to the fast changing world while not compromising more...

 
CBSE Class 12 board exam results will be declared on May 27

CBSE will declare the results of Class 12 board exams on 27 May at 10 am. Students can access their exam results by logging on www.results.nic.in,cbse.nic.in and www.cbseresults.nic.in. They can also use the interactive voice response system (IVRS) to check their marks Read more...

 

 

 

 
 
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  Study Smartly to Score Well in Exams

Scoring well in exams is the motto of every student. So he works hard to achieve his goal. Good study strategy may help him to study effectively and minimize the stress as well. There are some study tips that will help you to understand your learning style and you can perform better during exam time. Here are some study strategies that will help you to understand your learning style.

 
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various kind of oscillator and its applications -  Author: Smruti Ranjan SarangiOscillators are devices that are used to generate repetitive signals. They produce output signals without an input signal. There are two major.. more » (17 days 36 views)
 
concept of first law of thermodynamics -  Author: P. Surya PrakashThe water stored in a dam possesses potential energy by virtue of its height. When this water is allowed to fall, its potential energy change into kinetic e.. more » (17 days 38 views)
 
newtons universal law of gravity -  Author: nitin.p070Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the.. more » (17 days 35 views)
 
 
 
Course Material: Class IX - Cell As a Unit Life

  • The study of structure and function of cell is called cytology. Robert Hooke (1665) for the first time observed a honey comb like pattern in a slice of cork under primitive microscope and termed it as 'cell'. He published his work in his book Micrographia.
  • Corti (1772) first time observed that all cells contain a living substance. Felix Dujardin (1836) named this substance as sarcode. J. E. Purkinje (1839) for the first time termed the living substance present in cells as protoplasm.Protoplasm theory was proposed by M. Schultze (1861). According to this theory cell is an accumulation of nucleus and protoplasm is limited by an outer membrane.Hugo Von Mohl (1846) termed the living substance of plant cell as protoplasm.
  • Matthias Schleiden (German Botanist) in 1838 and Theodor Schwann (German zoologist) in 1839 proposed the cell doctrine or cell theory suggesting that Living organisms are composed of cells and their products. Cell is the fundamental 'Unit of life
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