Respuesta :
Concave mirror has been used to create virtual pictures.
According to Magnification formula;
H1 / H2 = -v / u
3.5 / 4.5 = -v / 28
v = -21.78 cm (Image is virtual)
According to Mirror formula;
1/f = 1/v + 1/u
f = [(-21.78)(28)] / [(-21.78) + (28)]
f = -98.045 cm
Radius of Curvature
Radius of Curvature = 2f
Radius of Curvature = 2(-98.045)
Radius of Curvature = -196.09 cm
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https://brainly.com/question/22714636?referrer=searchResults