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The image of an object placed at a dista...

The image of an object placed at a distance of 40 cm from a convex mirror is formed at a distance of 10 cm from the mirror. If object approaches the mirror with a velocity of `32 cm * s^(-1)` , what will be the velocity of the image `( "in" cm * s^(-1))`

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Knowledge Check

  • The image of a point object placed at 10 cm from a concave mirror, is formed at a distance of 20 cm from the mirror. If the object is moved towards the mirror by 0.1 cm then the image

    A
    will move another 0.41 cm away from the mirror
    B
    will move another 0.81 cm away from the mirror
    C
    will move towards the mirror by another 0.41 cm
    D
    will move towards the mirror by another 0.81 cm

  • If an object is placed at a distance of 40 cm from a concave mirror of focal length 20 cm , them the image wil be

    A
    virtual and inverted
    B
    real and erect
    C
    real, inverted and diminished
    D
    real, inverted and same size as the object

  • An object is placed at a distance of 20 cm from a concave mirror of focal lenght 10 cm. What is the image distance?

    A
    20 cm
    B
    6.67 cm
    C
    10 cm
    D
    30 cm

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    An object is placed at a distance of 25 cm from a concave mirror and a real image a formed by the mirror at a distance of 37.5 cm. The focal length of the mirror is

    A concave mirror forms a virtual image of twice the size of the object placed at a distance of 10 cm from the mirror. If the object is placed at a distance of 30 cm from the mirror where will the image be formed? Formed? What will be the nature of the image formed?

    What will be the image of an object placed before a convex mirror-erect or inverted?

    An object is placed at a distance of 25 cm from a concave mirror and a real image a formed by the mirror at a distance of 37.5 cm. If the object is moved 15 cm towards the mirror the image distance will be

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