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CDS - Science Test 1429
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CDS - Science Test 1429
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  • Question 1/5
    1 / -0.33
    What is the male reproductive structure of a flower called?
    Solutions

     Anther. The anther is the part of the flower that produces pollen, which contains the male gametes. Hence C is the correct option.

  • Question 2/5
    1 / -0.33
    What is the female reproductive structure of a flower called?
    Solutions

    Ovary. The ovary is the part of the flower that contains the female gametes and will eventually develop into a fruit. Hence B is the correct option.

  • Question 3/5
    1 / -0.33
    The Mass number of an atom is
    Solutions

    Mass Number of an Atom is calculated by the sum of protons and neutrons in a nucleus of an atom.

    It represents the sum of a total number of nucleons in the nucleus. It determines the atomic mass of the atom. Hence, option A is the correct answer.

  • Question 4/5
    1 / -0.33
    What are the limitations of Rutherford’s model of an atom-?
    Solutions

    • According to Maxwell’s equation of electromagnetism, an accelerated electron must continuously emit electromagnetic radiation and loses its energy and fall towards the nucleus.

    • Thus Rutherford model can’t explain this loss of energy.

  • Question 5/5
    1 / -0.33
    Which statement is not correct for the Rutherford model of the atom?
    Solutions
    Radius of the nucleus is of order  and radius of an atom is of order  hence there is a considerable amount of difference between the two.
    other statements are correct with respect to the Rutherford model of the atom. Hence, option C is correct.
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