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 one of the following colours may be obtained by combining green and red colours?
Which of the following are the primary colours of light?
Directions: The following items consist of two statements, Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below:
Statement I: Diamond is very bright.
Statement II: Diamond has very low refractive index
A non-SI unit called 'nit' is the unit of which of the following photometric quantities used to measure a multitude of light intensity?
Which among the following is used as a reflector in search lights?
