Question

A spherical silver Christmas tree ornament, 14 cm in diameter, acts as a mirror.

(a) Are the images one sees in it real or virtual, upright or inverted? (Select all that apply.)

(b) Find the image height of a man 1.9 m tall, standing 3.7 m from the ornament.

Answer 1

Answer 2

The images seen are virtual and upright. The image height in the given case is 0.9236 cm

Answer 3

Ans (a)-

spherical silver Christmas tree ornament will act as convex mirror

Hence all image formed by it will be virtual (because we can't take it on screen) and upright.

Ans (b)- image hight 3.5278 cm upright

And (a)- From picture it is clear spherical silver Christmas tree ornament will act as convex mirror hence all image formed here will we virtual and upright.

Ans (b)-

For mirror formula

Here f= R/2 = 14cm/2 = 7cm

u= -3.7m = -370cm

Hence

Where h_{​​​​​​o} = 1.9m= 190cm

Hence