Central Board Of Secondary Education – ( CBSE )
Class – 10
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Recommended Question & Answers for Class 10
1. Use Euclid’s Division Algorithm to find the HCF of 135 and 225.
By Euclid’s Division Algorithm, we have
38220 = 196 x 195 + 0
196 = 196 x 1 + 0
:. HCF (38220, 196) = 196.
2. How much energy is given to each coulomb of charge passing through a 6 V battery?
Energy given by battery = charge x potential difference or W = QV = 1C X 6V = 6J.
3. Can you think of reasons why more complex organisms cannot give rise to new individuals through regeneration ?
In complex multicellular organisms, specialized cells make up tissues, tissue make up organs, organs make up organ systems and finally organ systems make up organisms. Since complex multicellular organisms have a very high degree of organization in their body, they cannot be reproduced from their cut body parts by the process of regeneration.