Question

an object 2 cm tall placed at 40 cm from a convex mirror if it has a focal length of 15 CM then find nature size and position of image​

Answer 1

~$\small \blue {\sf{Answer }}$✨❤

U(object distance) = -15 as u is always negative

F = -10 (as it is always negative for concave miror and lens )

1/F =1/v + 1/u

-1/10 = 1/v + (-1/15)

-1/10 +1/15 =v

-3+2/30 =v

V=-30cm

Hi/Ho = - V/U

Hi /2 = -(-30/15)

Hi =-30×2÷15

Hi =-4cm (Real and inverted)

$\huge \orange {\mathfrak{Thank You }}$