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     EduGorilla 
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    A luminous point object is moving along the principal axis of a concave mirror of focal length 12 cm towards it. When its distance from the mirror is 20 cm its velocity is 4 cm/s . The velocity of the image in cm/s at that instant

    Options :-

    1. 6cm/s, towards the mirror

    2. 6cm/s, away from the mirror

    3. 9cm/s, away from the mirror

    4. 9cm/s, towards the mirror

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