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Image 15
9 An object is placed in front of a canvex mirror of focal length 15 cm. If the...
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Physics, 18.03.2021 02:00 liljobe8973
Scre
Image 15
9 An object is placed in front of a canvex mirror of focal length 15 cm. If the image is 10cm
from the mirror, calculate the object dstance.
A. 30,00cm B. 25.00cm C. 35.00cm D. 40.00 cm
10 An object is placed at infinity in front of a concave minor, Whicre will thc image bc formed
and what is the nature?
A. Principal focus, real, diminished and invented
B. Centre of curvature, real, magniſed and inverted
C. Principal focus, virtual, diminished and crect
D. Centre of curvature, real, diminished and invented
11 Explain what you understand by opaque, transparent and transluccot materials. Give exaraples
of each
12 Explain how a real image can be distinguished from a virtual image.
13 Why is the principal focus of a convex mirror called a virtual focus?
14 A distant object is brought towards a concave spherical mirror. Describe the changes in the
size and nature of the image as the object distance varies from infinity to zero.
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