In concave mirror
f = 20
v = u
Find u and v , nature and size of image
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Heya!!!
Answer to your question:
For conacave mirror, f is -ve.
So, f=-20
1/f=1/v+1/u
1/f=1/u+1/u
1/f=2/u
f=u/2
u=2f=2 (-20)=-40cm
v=-40cm
Nature of image=Real and inverted.
As image is at 2f, size of image is same as size of object.
Hope it helps ^_^
Answer to your question:
For conacave mirror, f is -ve.
So, f=-20
1/f=1/v+1/u
1/f=1/u+1/u
1/f=2/u
f=u/2
u=2f=2 (-20)=-40cm
v=-40cm
Nature of image=Real and inverted.
As image is at 2f, size of image is same as size of object.
Hope it helps ^_^
Anishu1234:
I can 't understand the language of the picture you have posted write it in a understandable language please....
It's simple english
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