Classify as real or virtual, the image of a candle flame formed on a screen by a convex lens. Draw a ray diagram to illustrate how the image is formed.

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Solution

Let the candle is placed beyond 2F₁ and its diminished image which is real and inverted is formed between F₂ and 2F₂
Here the candle is AB and its real and inverted image is formed between F₂ and 2F_2.

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Similar questions

Q. (a) Draw ray diagrams to illustrate the formation of a virtual image by using (i) a convex lens, and (ii) a concave lens.
(b) What is the difference between the two images formed above?

Q. (a) An object is placed between f and 2f in front of a convex lens. Draw a labelled ray-diagram to show the formation of image.
(b) State whether the image formed is real or virtual.
(c) State whether the image formed is diminished or enlarged.

A student focuses the image of a candle flame on a white screen using a convex lens. He noted down the position of the candle screen and the lens as shown below
Position of candle = 12.0 cm
Position of convex lens = 50.0 cm
Position of the screen = 88.0 cm
(i) What is the focal length of the convex lens?
(ii) Where will the image be formed if he shifts the candle towards the lens at a position of 31.0 cm?
(iii) What will be the nature of the image formed if he further shifts the candle towards the lens?
(iv) Draw a ray diagram to show the formation of the image in case (iii) as said above.

Q. (a) An object is placed well outside the principal focus of a convex lens. Draw a ray diagram to show how the image is formed, and say whether the image is real or virtual.
(b) What is the effect on the size and position of the image of moving the object (i) towards the lens, and (ii) away from the lens?

Q. A student focussed the image of a candle flame on a white screen using a convex lens. He noted down the position of the candle, screen and the lens with metre scale as under:
Position of candle

= 12.0 c m

Position of convex lens

= 50.0 c m

Position of the screen

= 88.0 c m

Where will the image be formed if he shifts the candle towards the lens at a position of 31.0 cm ?

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Classify as real or virtual, the image of a candle flame formed on a screen by a convex lens. Draw a ray diagram to illustrate how the image is formed.

Let the candle is placed beyond 2F1 and its diminished image which is real and inverted is formed between F2 and 2F2 Here the candle is AB and its real and inverted image is formed between F2 and 2F2.

Let the candle is placed beyond 2F₁ and its diminished image which is real and inverted is formed between F₂ and 2F₂
Here the candle is AB and its real and inverted image is formed between F₂ and 2F_2.