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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...

 
ICSE & ISC 2012 Results to be declared on 19th May
The results of ICSE & ISC 2012 will be declared on Saturday 19th May 2012 at 3:00 p.m. The results of the examinations of ICSE-2012 and ISC 2012 will be made available through the Internet. The results are also available through SMS on GSM mobiles. The procedure for viewing the results on the internet is uder friendly & interactive. The candidate can view their individual result. All the best to all the students!!!




Karnataka PUC, SSLC Examination Results 2012 Declared 
 

 

 

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  Pass / Fail?? CBSE thinks otherwise...

From the year 2010, no pass, fail or compartmental anymore. Now, CBSE board has made it clear that such words will be erased from the marksheets of the students from the next year.  This decision comes hand-in-hand with the Tuesday's announcement that the students of CBSE board would get up to three chances for clearing the Class IXth and Xth exams, in case they fail to clear the exam. At the bottom of the score sheet, terms like pass (P), fail (F) and compartmental (C) are mentioned along with the aggregate grade.

 
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right time to career planning... - As the board exams are over, many of you take breathe a sign of relief. But for many, the exam time is not still over as they are preparing for entrance exams like IIT, AIEEE, BITSAT, AIPMT et.. more » (28 days 159 views)
 
spontaneity, randomness & nature of driving force -  Spontaneity and RandomnessCareful examination shows that in each of the processes E. g. melting of ice and evaporation of rain water, there is an increase in randomness .. more » (56 days 406 views)
 
second law of thermodynamics -  The second law of thermodynamics states that, “Whenever a spontaneous process takes place, it is accompanied by an increase in the total energy of the universe”.Mo.. more » (78 days 348 views)
 
 
 
Course Material: Class VIII - Light

Reflection:

  • The objects which shine in the light other objects are called illuminated objects e.g. moon receives light from the sun and reflects it. That's how we see the moon.
  • The object which emit their own light are known as luminous objects. E.g. sun, fire, flame of a candle and an electric lamp.
  • The sun light is referred to as white light. It consists of seven colours. The splitting of light by a prism (mirror and water form a prism) in to its colours is known as dispersion of light. Rainbow is a natural phenomenon showing dispersion.

   

Phenomena of dispersion

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