Concave Lens Image Characteristics
A concave lens is a diverging lens. Understanding its optical properties is key to determining the nature of the image it forms.
Image Formation by Concave Lens
For any object placed in front of a concave lens, the image formed has specific characteristics:
- Nature: The image is always virtual. This means the light rays do not actually converge; they only appear to diverge from a point behind the lens.
- Orientation: The image is always erect (upright), meaning it has the same orientation as the object.
- Location: The image is formed on the same side of the lens as the object.
- Size: The image is always diminished (smaller than the object).
Analysis of Options
Based on the properties above:
- Option 1 correctly states that the image is always virtual, erect, and on the same side as the object.
- Option 2 is incorrect because the image is typically diminished, not larger.
- Option 3 is incorrect because the virtual image is formed on the same side, not the opposite side.
- Option 4 is incorrect because concave lenses always form virtual images, never real images.
Important Questions from Optics
Which among the following is used as a reflector in search lights?
The incident ray, the ray perpendicular to the point of incidence, and the reflected ray all lie________.
Which is the only event to prove that light is a transverse wave?
A. Scattering of light
B. Interference
C. Diffraction
D. Polarisation
In which a convex mirror is used?
A. Rear View mirrors in vehicles
B. Glass windows
C. Makeup Mirror
D. Kaleidoscope
Which mirror is preferred as a rear-view (wing) mirror in vehicles because of its wider field of view?
