Question

A concave spherical mirror with a radius of curvature of 100 cm creates an inverted image at a distance of 2.7 m from the mirror. Where is the object located? 61.4 cm from the mirror 2.85 cm from the mirror 159 cm from the mirror 5.70 cm from the mirror 42.2 cm from the mirror

Answer 1

Image distance,

u fu V-f 100 * 270 2 270 – 50 61.4cm + Answer

Film thickness for Reflection, $t = \frac{\lambda}{4n} = \frac{497}{4*1.4} = 89.0 cm$