An object is at a distance of 20 m from a convex lens of focal length 0.3 m. The lens forms an image of the object. If the object moves away from the lens at a speed of $5 \mathrm {~m} / \mathrm { s }$ the speed and direction of the image will be (1) $2.26 \times 10 ^ { - 3 } \mathrm {~m} / \mathrm { s }$ away from the lens (2) $0.92 \times 10 ^ { - 3 } \mathrm {~m} / \mathrm { s }$ away from the lens (3) $3.22 \times 10 ^ { - 3 } \mathrm {~m} / \mathrm { s }$ towards the lens (4) $1.16 \times 10 ^ { - 3 } \mathrm {~m} / \mathrm { s }$ towards the lens
An object is at a distance of 20 m from a convex lens of focal length 0.3 m. The lens forms an image of the object. If the object moves away from the lens at a speed of $5 \mathrm {~m} / \mathrm { s }$ the speed and direction of the image will be\\
(1) $2.26 \times 10 ^ { - 3 } \mathrm {~m} / \mathrm { s }$ away from the lens\\
(2) $0.92 \times 10 ^ { - 3 } \mathrm {~m} / \mathrm { s }$ away from the lens\\
(3) $3.22 \times 10 ^ { - 3 } \mathrm {~m} / \mathrm { s }$ towards the lens\\
(4) $1.16 \times 10 ^ { - 3 } \mathrm {~m} / \mathrm { s }$ towards the lens