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Science · 2023 · 3 marks
CBSE 2023 · Region 1 · Set 3 · Q29
A student wants to project the image of a candle flame on a screen $\displaystyle 60$ cm in front of a mirror by keeping the candle at a distance of $\displaystyle 15$ cm from its pole.(a)Name the type of mirror used.(b)Also calculate :(i)Magnification of the image produced(ii)Distance between object and its image(c)Draw a ray diagram to show the image formation.
A student wants to project the image of a candle flame on a screen $\displaystyle 60$ cm in front of a mirror by keeping the candle at a distance of $\displaystyle 15$ cm from its pole.
(a)
Name the type of mirror used.
(b)
Also calculate :
(i)
Magnification of the image produced
(ii)
Distance between object and its image
(c)
Draw a ray diagram to show the image formation.
Marking-scheme solution
(a) Concave Mirror / Converging Mirror
(b) (i). \(\displaystyle \mathrm{m}=\frac{-\mathrm{v}}{\mathrm{u}}=-\frac{(-60)}{(-15)}=-4\)
(ii) . $\displaystyle 45$ cm from the object
(c) 
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CBSE Class 10 Science past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.