Question Number 132899 by aurpeyz last updated on 17/Feb/21
$${an}\:{object}\:{of}\:\mathrm{12}{cm}\:{long}\:{is}\:{placed}\:{at}\:{the}\: \\ $$$${centre}\:{of}\:{curvature}\:{of}\:{concave}\:{mirror} \\ $$$${whose}\:{focal}\:{length}\:{is}\:\mathrm{40}{cm}.\:{the}\:{location} \\ $$$${of}\:{the}\:{image}\:{formed}\:{is}? \\ $$