An object is placed `18 cm` in front of a mirror. If the image is formed at `4 cm` to the right of the mirror, calculate its focal length. Is the mirror convex or concave ? What is the nature of the image ? What is the radius of curvature of the mirror ?
Text Solution
AI Generated Solution
To solve the problem step by step, we will use the mirror formula and the information given in the question.
### Step 1: Identify the given values
- Object distance (u) = -18 cm (the negative sign indicates that the object is in front of the mirror)
- Image distance (v) = +4 cm (the positive sign indicates that the image is formed to the right of the mirror)
### Step 2: Use the mirror formula
The mirror formula is given by:
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