Question

a candle flame 2m high is at a distance of 15cm from a pinhole camera what is the height of the image formed when the screen is placed 25 cm from a pin hole​

Answer 1

Answer:

Let AB be the height of the object. Let M be the midpoint of AB. Let CD be the height of the image. Let N be the midpoint of CD. Let O be the pinhole. Align the points M, O, & N. MO = 50 cm and NO = 10 cm. MB = 20/2 = 10 cm. Triangles BMO and CNO are similar because <BOM = <CON (vertically opposite) and <M = <N = 90. The sides of similar triangles are proportional. Then: CN / BM = NO / MO →

Answer 2

Answer:

Solution :

Given that size of object, (o)=6cm <br> Distance of object, (u) =2 cm <br> Distance of image, (v) = 4 cm <br> We know,

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magnification

Explanation:

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