Select from the following for the next two questions: 1. An object is placed 7.1

Question

Select from the following for the next two questions:

1. An object is placed 7.1 cm away from a spherical concave mirror. The radius of curvature of the mirror is 20.0 cm. Select the statement from the list above which best describes the image.
2. An object is placed 7.1 cm away from a diverging lens. The lens has a focal length of 10.0 cm. Select the statement from the list above which best describes the image.

A real, upright and larger than the object B real, inverted and larger than the object C virtual, upright and smaller than the object D virtual, upright and larger than the object E real, inverted and smaller than the object F virtual, inverted and smaller than the object G virtual, inverted and larger than the object H real, upright and smaller than the object

Explanation / Answer

1.
f=R/2
=20/2
=10 cm

s=7.1 cm

since s<f and mirror is converging,

virtual image will be formed
image is upright and larger than object
ANS: D

2.

since less diverging,
image is always virtual , smaller than object and upright irrespectiveof object position

Ans:C

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