A concave mirror has focal length 20cm at what distance from the mirror should a 4cm object be placed so that it forms
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1/v+1/u=1/f
1/v=1/f-1/u
1/v=1/20-(1/4)
1/v=1/20-1/4
1/v=1-5/20
1/v=-4/20
1/v=-1/5
v=-5cm
Add me as brainly....
1/v=1/f-1/u
1/v=1/20-(1/4)
1/v=1/20-1/4
1/v=1-5/20
1/v=-4/20
1/v=-1/5
v=-5cm
Add me as brainly....
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0
Answer:
Don't know
Explanation:
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