Question

Draw the formation of different type of image formed by convex lens also write type of image formed by the convex lens​

Answer 1

Answer:

Image Formation by Convex Lens

There are six possibilities of position of object in the case of convex lens:

   Object at infinity

   Object beyond centre of curvature, C

   Object at centre of curvature, C

   Object between centre of curvature, C and principal focus, F

   Object at principal focus, F

   Object between principal focus, F and optical centre, O

Object at infinity:

Convex lens converge parallel rays coming from objet at infinity and a highly diminished - point sized, real and inverted image is formed at principal focus F2.

object at infinity convex lens

Properties of Image: Image is highly diminished, real and inverted.

Object beyond centre of curvature, C1 or 2F1:

A diminished, real and inverted image is formed between principal focus, F2 and centre of curvature, C2 at the opposite side when an object is placed beyond C1 of a convex lens.

object beyond 2F convex lens

Properties of Image: Image is diminished, real and inverted.

Object at centre of curvature, C1 or 2F1:

A same sized, real and inverted image is formed at centre of curvature, C2 when object is placed at centre of curvature, C1 of a convex lens.

object at 2F convex lens

Fig: Object at 2F

Properties of Image: Image is same size as object, real and inverted.

Object between centre of curvature, C1 and principal focus, F1:

An enlarged, real and inverted image is formed beyond centre of curvature, C2 when an object is placed between centre of curvature, C1 and principal focus, F1 of a convex lens.

object between F2 and F convex lens

Fig: Object between 2F and F

Properties of Image: Image is enlarged, real and inverted.

Object at principal focus, F1:

An infinitely large, real and inverted image is formed at infinity when object is placed at principal focus, F1 of a convex lens.

object at focus convex lens

Fig: Object at F

Properties of Image: Image is highly enlarged, real and inverted.

Between principal focus, F1 and optical centre, O:

A virtual, erect and enlarged image is formed at the same side of lens, when an object is placed between principal focus, F1 and optical centre, O of a convex lens.

object between F and O convex lens

Fig: Object between F and O

Properties of Image: Image is enlarged, virtual and erect.

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Explanation: