Cbse


The CBSE was given its present name Central Board of Secondary Educations in the year 1952. The Board was reconstituted in the year 1962 when its jurisdiction was extended.
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  • Ex: What is the ratio of the nuclear densities of two nuclei having mass numbers in the ratio 1:4?
     
    Solution: As the nuclear density is independent of mass number, so the ratio of nuclear densities of the two given nuclei is 1:1.
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