When an object is placed at a distance of 15 cm from a concave mirror, it’s image is formed at 10 cm in front of the mirror. Calculate the focal length of the mirror .
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HEY DEAR ...
U = -15
v = 10
Now,
1/f = 1/v + 1/u
1/f = 1/10 - 1/15
1/f = (3 - 2)/30
1/f = 1/30
therefore,
f = 30cm
HOPE , IT HELPS ...
U = -15
v = 10
Now,
1/f = 1/v + 1/u
1/f = 1/10 - 1/15
1/f = (3 - 2)/30
1/f = 1/30
therefore,
f = 30cm
HOPE , IT HELPS ...
mongiasumali:
An object 3 cm high is placed at a distance of 8 cm from a concave mirror which produces a virtual image 4.5 cm high ...... what is the focal length of the mirror...... what is the position of image.... draw a ray- diagram to show the formation of image
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