Question

the focal length of a concave mirror is 10cm , Locate the image and state the characteristics when the object is 16cm from pole​

Answer 1

Answer: Given:

Focal length of concave mirror, f = -20 cm

Distance of object from the mirror, u = -10 cm

use formula, 1/v + 1/u = 1/f  

or, 1/v = 1/f - 1/u  

or, 1/v = 1/-20 - 1/-10  

or, 1/v = -1/20 + 1/10 = 1/20  

or, v = +20cm  

hence, image position is the 20cm right side from the pole of the concave mirror as shown in the diagram. The image is straight and bigger than the object.

Step-by-step explanation:

Answer 2

Answer:

hence, image position is the 20cm right side from the pole of the concave mirror as shown in the diagram. The image is straight and bigger than the object.

Step-by-step explanation:

Focal length of concave mirror, f = -20

cm

Distance of object from the mirror, u =

-10 cm

use formula, 1/v + 1/u = 1/f

or, 1/v = 1/f-1/u

or, 1/v = 1/-20 -1/-10

or, 1/v = -1/20 + 1/10 = 1/20

or, v = +20cm

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