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CBSE Class 10 Science Practice Paper SA–II: Set–I

Oct 21, 2015 18:09 IST

    Find CBSE Class 10 Science Practice Paper for the Summative Assessment – II. These questions will not only help the students to prepare for exams in a better manner, but will also help them in understanding the depth with which a topic should be studied.

    Few sample questions from the Question Paper are given below:

    Q. What are Isomers? State two properties of carbon which lead to the huge number of carbon compound.

    Q. How many 'X' chromosomes are present in body cells of humans in a:  

    (i) Male

    (ii) Female? 

    Describe the role of sex chromosomes in deciding the sex of the child.

    Q. Justify the statement giving examples: ‘‘It is possible that a trait is inherited but may not be expressed.’’

    Q. Write the importance of ciliary muscles in the human eye.  Name the defect of  vision  that  arises due to gradual  weakening  of  the  ciliary muscles  in  old  age. What types of lenses are required by the persons suffering from this defect to see the objects clearly?

    Q. An object of height 5 cm is placed perpendicular to the principal axis of a concave lens of focal length 10 cm.  If the distance of the object from the optical centre of the lens is 20 cm, determine the position, nature and size of the image formed using the lens formula.

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