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Anirudra

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  1. Asked: December 11, 2021In: Class 10 Science

    What is the formula for magnification obtained with a lens?

    Anirudra
    Added an answer on December 13, 2021 at 3:55 am

    [A] Ratio of height of image to height of object

    [A] Ratio of height of image to height of object

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  2. Asked: December 11, 2021In: Class 10 Science

    A milk man adds a very small amount of baking soda to fresh milk:

    Anirudra
    Added an answer on December 13, 2021 at 3:55 am

    [B] To decrease the rate of fermentation

    [B] To decrease the rate of fermentation

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  3. Asked: December 11, 2021In: Class 10 Science

    How spherical mirror is made?

    Anirudra
    Added an answer on December 13, 2021 at 3:55 am

    [A] From cut portion of hollow sphere of glass.

    [A] From cut portion of hollow sphere of glass.

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  4. Asked: December 4, 2021In: Class 10 Science

    Nelu’s friend suffered a fracture in her foot while riding her bicycle. She had to be admitted to the Nursing Home and the doctor plastered her foot. The chemical formula for POP is:

    Anirudra
    Added an answer on December 4, 2021 at 9:31 am

    [C] CaSO₄.1/2H₂O

    [C] CaSO₄.1/2H₂O

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  5. Asked: December 3, 2021In: Class 10 Science

    Select the colours in the correct ascending of wavelength:

    Anirudra
    Added an answer on December 4, 2021 at 9:31 am

    [A] Blue, Green, Red

    [A] Blue, Green, Red

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  6. Asked: December 3, 2021In: Class 10 Science

    Which among the following is (are) double displacement reaction(s)?

    Best Answer
    Anirudra
    Added an answer on December 3, 2021 at 12:04 pm

    (B) (ii) only Double displacement reaction is the reaction in which two different atoms or group of atoms are mutually exchanged. In this reaction, sodium and barium were mutually exchanged.

    (B) (ii) only
    Double displacement reaction is the reaction in which two different atoms or group of atoms are mutually exchanged. In this reaction, sodium and barium were mutually exchanged.

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  7. Asked: December 3, 2021In: Class 10 Science

    When the turnings are added to silver nitrate solution, a blue coloured solution is formed after some time. It is because copper:

    Best Answer
    Anirudra
    Added an answer on December 3, 2021 at 12:04 pm

    [C] (I) and (III) Copper is placed above silver in electrochemical series and thus reaction occurs Cu+2Ag⁺ → Cu2⁺ +2Ag

    [C] (I) and (III)
    Copper is placed above silver in electrochemical series and thus reaction occurs
    Cu+2Ag⁺ → Cu2⁺ +2Ag

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  8. Asked: December 3, 2021In: Class 10 Science

    A spectrum of light is observed when white light is directed to a prism as:

    Best Answer
    Anirudra
    Added an answer on December 3, 2021 at 12:04 pm

    [B] The different colours in the white light bend towards the normal line at different angles on entering prism.

    [B] The different colours in the white light bend towards the normal line at different angles on entering prism.

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  9. Asked: November 17, 2021In: Class 9 Science

    The living cells were discovered by

    Anirudra
    Added an answer on November 17, 2021 at 12:11 pm

    [C] Leeuwenhoek

    [C] Leeuwenhoek

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  10. Asked: November 17, 2021In: Class 9 Science

    The husk of coconut is made up of

    Anirudra
    Added an answer on November 17, 2021 at 12:11 pm

    [A] Sclerenchyma

    [A] Sclerenchyma

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