1. [C] 8 cm Magnification, m = 3 v = 24 cm, Image distance Object distance, u =? As, m = v/u u = v/m =24/3 = 8 cm Hence, she should put the object at 8 cm from the lens L₂.

    [C] 8 cm
    Magnification, m = 3
    v = 24 cm, Image distance
    Object distance, u =?
    As, m = v/u
    u = v/m
    =24/3
    = 8 cm
    Hence, she should put the object at 8 cm from the lens L₂.

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  2. [C] Sour and change Blue litmus to Red You must know that acid turns blue Litmus solution to red. They have a sour taste as in the case of vinegar and are sticky to touch. Hence, your answer will be option [C].

    [C] Sour and change Blue litmus to Red
    You must know that acid turns blue Litmus solution to red. They have a sour taste as in the case of vinegar and are sticky to touch. Hence, your answer will be option [C].

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  3. (C) Remain at the same position When a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 years the nail remains at same level.

    (C) Remain at the same position
    When a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 years the nail remains at same level.

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