1. Explanation (a) Concave mirror is used in the headlights of a car. This is because concave mirrors can produce powerful parallel beam of light when the light source is placed at their principal focus.

    Explanation
    (a) Concave mirror is used in the headlights of a car. This is because concave mirrors can
    produce powerful parallel beam of light when the light source is placed at their principal
    focus.

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  2. (a) Concave (b) Convex (c) Concave Explanation (a) Concave mirror is used in the headlights of a car. This is because concave mirrors can produce. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-10/

    (a) Concave
    (b) Convex
    (c) Concave
    Explanation
    (a) Concave mirror is used in the headlights of a car. This is because concave mirrors can
    produce.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-10/

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  3. Range of object distance = 0 cm to15 cm A concave mirror gives an erect image when an object is placed between its pole (P) and the principal focus (F). Hence, to obtain an erect image of an object from a concave mirror of focal length 15 cm, the object must be placed anywhere between the pole and tRead more

    Range of object distance = 0 cm to15 cm
    A concave mirror gives an erect image when an object is placed between its pole (P) and
    the principal focus (F).
    Hence, to obtain an erect image of an object from a concave mirror of focal length 15 cm,
    the object must be placed anywhere between the pole and the focus. The image formed
    will be virtual, erect, and magnified in nature, as shown in the given figure.

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    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-10/

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  4. (c) A convex lens gives a magnified image of an object when it is placed between the radius of curvature and focal length. Also, magnification is more for convex lenses having shorter focal length. Therefore, for reading small letters, a convex lens of focal length 5 cm should be used. For more answRead more

    (c) A convex lens gives a magnified image of an object when it is placed between the
    radius of curvature and focal length. Also, magnification is more for convex lenses having
    shorter focal length. Therefore, for reading small letters, a convex lens of focal length 5
    cm should be used.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-10/

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  5. (d) A convex mirror always gives a virtual and erect image of smaller size of the object placed in front of it. Similarly, a plane mirror will always give a virtual and erect image of same size as that of the object placed in front of it. Therefore, the given mirror could be either plane or convex.Read more

    (d) A convex mirror always gives a virtual and erect image of smaller size of the object
    placed in front of it. Similarly, a plane mirror will always give a virtual and erect image of
    same size as that of the object placed in front of it. Therefore, the given mirror could be
    either plane or convex.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-10/

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