4. -110 points SerCP10 23.P014 My N A concave mirror has a focal length of 32.4

Question

4. -110 points SerCP10 23.P014 My N A concave mirror has a focal length of 32.4 cm (a) What is its radius of curvature? cm (b) Locate the image when the object distance is 100 cm. (Indicate the side of the mirror with the sign of your answer.) cm Describe the properties of the image when the object distance is 100 cm. (Select all that apply.) real 0 O upright virtual inverted (c) Locate the image when the object distance is 10.0 cm. (Indicate the side of the mirror with the sign of your answer.) cm Describe the properties of the image when the object distance is 10.0 cm. (Select all that apply.) real virtual upright

Explanation / Answer

(A) R =2 f = 2 x 32.4 = 64.8 cm

(B) f = 32.4 cm

object distance, p = 100 cm

1/f = 1/p + 1/q

1/32.4 = 1/100 + 1/q

q = 47.9 cm ....Ans

q is +ve so image is real and inverted. ....Ans

(C) p = 10 cm

puttin in above formula,

q = - 14.5 cm .....Ans

virtual and upright ........Ans

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