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F=20cm the observation is u=40cm and …

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F=20cm the observation is u=40cm and v=45cm why it is wrong

Posted by Ayyapureddy Kusuma 6 years, 9 months ago

CBSE > Class 10 > Science

4 answers

Aayush Patel 6 years, 9 months ago

Object is always placed in front of lens/mirror i.e negative

Tapan Pandey 6 years, 9 months ago

Because u always be negative

Tasmiya Peerzade 6 years, 9 months ago

U=-40cm

Sami P 6 years, 9 months ago

u will negative

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