zoe asked in Science & MathematicsPhysics · 4 months ago

PHYSICS HELP PLEASE?

An object is in front of a convex mirror that has a radius of curvature of 30 centimeters. I have placed an object 18 centimeters from the mirror; it is 5.6 centimeters tall. 

Where is the image located?How tall is it? Is the image virtual or real?

1 Answer

Relevance
  • 4 months ago

    By 1/do + 1/di = 1/f

    =>due to sign convention, f = -R/2 = -15 & do = -18

    =>1/(-18) + 1/di = 1/(-15)

    =>di = -90 cm {-ve indicating in front of the mirror) ----------Answer (a)

    By m = hi/ho = -di/do

    =>hi = -[5.6 x (-90)]/18

    =>hi = 28 cm -------------------------Answer (b)

    As di = -90 cm=> the image is upright & virtual ----------------Answer (c)

Still have questions? Get answers by asking now.