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answer would be shown in embedded file .
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muskaan71:
hmm u are right
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U= 14cm
v=5.8cm
f=?
1/f=1/v+1/u
1/f=1/5.8+1/14
1/f=14+5.8/14*5.8
1/f=19.8/81.2
f=4.10.
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