For a concave mirror f=5cm,u=10cm,v=10cm,as per sign convention rules

1.	For a concave mirror f=5cm,u=10cm,v=10cm,as per sign convention rules is correct
Answer» Since, object is always placed in FRONT of the mirror hence the sign of object is taken as negative. Since, the centre of CURVATURE and FOCUS LIE in front of the concave mirror, so signs of radius of curvature and focal length are taken as negative in the case of concave mirrorExplanation:Hope HELPS you

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For a concave mirror f=5cm,u=10cm,v=10cm,as per sign convention rules is correct ​

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For a concave mirror f=5cm,u=10cm,v=10cm,as per sign convention rules is correct