Question

Ann is doing the Plane Mirror Lab in physics class. She places a pin of height 2cm at a distance of 4.9 cm from a plane mirror.
i. What will be the height of the image of the pin?
ii. How far behind the mirror can the image be expected to appear?
What do you mean by illuminated objects? Give one example.

Answer 1

Ann is doing the Plane Mirror Lab in physics class. She places a pin of height 2cm at a distance of 4.9 cm from a plane mirror.

i. What will be the height of the image of the pin?

ii. How far behind the mirror can the image be expected to appear?

What do you mean by illuminated objects? Give one example.

Answer 2

Answer:

(i) height of object = height of image

=> height of image = 2cm

(ii) distance of image from mirror = distance of object from mirror

=> distance of image = 4.9cm

Illuminated objects are objects that are capable of reflecting light to our eyes

example sun