Share

# An object is placed at a distance of 15 cm from a convex lens of focal length 20 cm. List four characteristics (nature, position, etc.) of the image formed by the lens. - CBSE Class 10 - Science

ConceptRefraction of Light Image Formation by Lenses - Convex Lens

#### Question

An object is placed at a distance of 15 cm from a convex lens of focal length 20 cm. List four characteristics (nature, position, etc.) of the image formed by the lens.

#### Solution

Here, object distance, u = -15 cm

and focal length, f = 20 cm

Using lens formula,

1/f = 1/v − 1/u

1/20 = 1/v − 1/(−15)

1/v = 1/20 − 1/15

v = − 60 cm

Four characteristics of the image formed by the lens are :

(i) Image formed is virtual

(ii) Image is erect

(iii) Image is formed on the same side of the lens as the object

(iv) Enlarged image

Is there an error in this question or solution?

#### Video TutorialsVIEW ALL 

Solution An object is placed at a distance of 15 cm from a convex lens of focal length 20 cm. List four characteristics (nature, position, etc.) of the image formed by the lens. Concept: Refraction of Light - Image Formation by Lenses - Convex Lens.
S