Question
Download Solution PDFThe focal length of a convex mirror is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is positive.
Key Points
- Focal length
- The focal length of a mirror or lens is the distance between its focal point and its pole, also known as the optical center of the lens.
- After reflecting in the mirror, a parallel beam of light is "focused" at the focal point (F) of the device.
- In the case of a convex mirror and lens, the focal length is regarded as positive.
- It is considered a negative for a concave mirror and lens. The letter f denotes it.
Additional Information
- Convex mirror
- A convex mirror is a kind of spherical mirror in which the reflecting surface is part of the sphere that is bulging out toward the incident light source.
- Convex mirrors always produce virtual, erect, and diminished images regardless of the distance between the object and the mirror.
- Concave mirror
- A mirror with its inner surface serving as the reflecting surface is created when a hollow sphere is cut into pieces and its outer surface is painted. A concave mirror is a name given to this kind of mirror.
- A virtual, magnified image is produced when the concave mirror is placed very close to the object.
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