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An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image.

Answer :

Focal length of convex mirror, f = +15 cm
Object distance, u = -10 cm

According to the mirror formula,

The positive value of v indicates that the image is formed behind the mirror.

The positive value of magnification indicates that the image formed is virtual and erect. Correct interpretation of the signs are important.

Remember: Object distance u is conventionally always taken as negative.

Magnification: Negative value corresponds to real & inverted images. Positive value corresponds to virtual & erect images.

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