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JA 10 mm long awi pin is placed vertically in front of a concave mirror. A 5 mm long Image of the awl pin is formed at 30 cm in front of the mirror. The focal length of this mirror is (a) - 30 cm (b) - 20 cm (c) - 40 cm (d) - 60 cm

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Q1
A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm in front of the mirror. The focal length of this mirror is

(a) -30 cm
(b) -20 cm
(c) -40 cm
(d) -60 cm
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Q2

Question 2
A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm in front of the mirror. The focal length of this mirror is

(a) -30 cm
(b) -20 cm
(c) -40 cm
(d) -60 cm

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Q3

A 10mm long awl pin is placed vertically in front of a concave mirror. A 5mm long image of the awl pin is formed at 30cm in front of the mirror. The focal length of this mirror is?


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Q4
An object is placed at a distance of 60 cm in front of a concave mirror of radius of curvature 40 cm. If the height of the object is 10 cm, find the location and height of the image.
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Q5
An object is placed at a large distance in front of a concave mirror of radius of curvature 40 cm. The image will be formed in front of the mirror at a distance:

(a) 20 cm
(b) 30 cm
(c) 40 cm
(d) 50 cm
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