The ray diagram given below illustrates the experimental set up for the determination of the focal length of a converging lens using an auxiliary mirror:

The distance between the object and optical centre of the lens is

Radius of curvature

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Double the focal length

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Focal Length

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Solution

The correct option is C
Focal Length

The magnification of the image is 1. The image formed is real and of the same size as the object. And the image is formed at the focus.

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The ray diagram given below illustrates the experimental set up for the determination of the focal length of a converging lens using an auxiliary mirror:

Two characteristics of the image formed are

Q. (a) The ray diagram given below illustrates the experimental set-up for the determination of the focal length of a converging lens using a plane mirror.

(i) Write two characteristics of the image Formed.
(ii) What is the name given to the distance between the object and optical centre of the lens in the above diagram?
(b) The given figure shows an object O as its image I. Copy the diagram and draw suitable rays to locate the lens and focus. Name the type of lens in this cases

[5 MARKS]

Ray diagram to illustrate the determination of the focal length of a convex lens using an auxiliary plane mirror is as follows. The formula of the focal length of the lens is:

The diagram in below figure shows the experimental set up for the determination of focal length of a lens using a plane mirror.

(i) Draw two rays from the point O of the object to show the formation of image I at O itself.

(ii) What is the size of the image I ?

(iii) State two more characteristics of the image I.

(iv) Name the distance of the object O from the optical centre of the lense.

(v) To what point will the rays return if the mirror is moved away from the lens by a distance equal to the focal length of the lens?

Describe how you would determine the focal length of a converging lens, using a plane mirror and one pin. Draw a ray diagram to illustrate your answer.

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The ray diagram given below illustrates the experimental set up for the determination of the focal length of a converging lens using an auxiliary mirror: The distance between the object and optical centre of the lens is

The correct option is C Focal LengthThe magnification of the image is 1. The image formed is real and of the same size as the object. And the image is formed at the focus.

The ray diagram given below illustrates the experimental set up for the determination of the focal length of a converging lens using an auxiliary mirror:

The distance between the object and optical centre of the lens is

The correct option is C
Focal Length

The magnification of the image is 1. The image formed is real and of the same size as the object. And the image is formed at the focus.