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A Student Wants to Project the Image of a Candle Flame on the Walls of the School Laboratory by Using a Mirror. - Science

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A student wants to project the image of a candle flame on the walls of the school laboratory by using a mirror.

(a) Which type of mirror should he use and why?

(b) At what distance, in terms of focal length 'f' of the mirror, should he place the candle flame to get the magnified image on the wall?

(c) Draw a ray diagram to show the formation of the image in this case.

(d) Can he use this mirror to project a diminished image of the candle flame on the same wall? State 'how' if your answer is 'yes' and 'why not' if your answer is 'no.'

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Solution

(a) He should use a concave mirror as it forms real images.

(b) He should place the candle flame between the focus and centre of curvature of the mirror to get the magnified image on the wall.

(c) The ray diagram for the formation of the image is shown below:

(d) Yes, he can get a diminished image of the candle flame when the object is located at infinity.

Concept: Concave Mirror
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