dep= 16443401-Q14 The radius of curvature of a mirror is 92 cm. A di ring is pla

Question

dep= 16443401-Q14 The radius of curvature of a mirror is 92 cm. A di ring is placed in front of this mirror. The image is three times the size of the ring Concepts (i) Is the mirror ve or convex, or is either type possible? convex either type is possible (l) How many places are there in front of a concave miror where the ring tan be placoed and produce an image three times the size of the object? 03 (ii) What are the possible values for the magnification of the image of the ring? (Enter your answers from smallest to largest starting with the first answer blank. E any remaining answer blanks.) Calculation: Find the possible object distances of the ring. (Enter your Type here to

Explanation / Answer

1. Only concave Mirror can form magnified image . Therefore answer is concave mirror

2. When Ring is placed between C & F, it forms a real inverted and magnified image , And

When ring is placed between F & O, it forms virtual, erect and magnified image.

Ans: 2

3. blank

-3

+3

4. (i) blank

(ii) f = -46 cm. Using Mirror Equation

For Real, Inverted and magnified image: v = 3u

1/v + 1/u = 1/f

u = 4f/3 = 61.33 cm Answer

(iii) For virtual, upright and magnified image

v = -3u

1/u + 1/v = 1/f

u = 2f/3 = 30.67 cm Answer

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