A student has 3 concave mirror a,b,c of focal length 20cm, 15 cm, and 10cm. respectively. for each concave mirror he performed the experiment of image formation foe three values of object find at least one value of object distance 30 cm, 10 cm, 20 cm,
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12 is the image distance
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Focal length of mirror
A = 20cm
B = 15cm
C = 10cm
Object distances for these mirrors are 30cm, 10cm and 20cms respectively.
1) Mirror C will produce an image of the same size as an object because the object is placed on C.
2) Mirror B can be used as shaving mirror because when the object is kept between P and F we get virtual, erect and magnified image.
Explanation:
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