2.1 - Plane Mirrors

Which statement is true for plane mirrors?

• They are flat, smooth surfaces that produce diffuse reflection.

• They are curved, smooth surfaces that produce diffuse reflection.

• They are flat, smooth surfaces that produce specular reflection.

• They are curved, smooth surfaces that produce specular reflection.

Images produced by plane mirrors are real images.

• True

• False

What kind of light rays form a virtual image?

• converging rays

• diverging rays

• refracting rays

• diffracting rays

In plane mirrors, what is the equation relating the position of an object $\left(x_o\right),$ and the position of its image $\left(x_i\right)$ , with respect to the mirror?

•  $x_o=x_i$  

•  $x_o=-x_i$  

•  $-x_o=-x_i$  

•  $x_o=2x_i$  

Which statement is true for the normal in a ray diagram at the point where the light strikes?

• It is perpendicular to the surface

• It is parallel to the surface

The image formed by a plane mirror is positioned _________ the mirror.

• above

• below

• in front of

• behind

The image formed by a plane mirror has the same orientation as the object.

• True

• False

What is true about the size of the image formed by plane mirrors with respect to the object?

• It is reduced

• It is the same size

• It is larger

• It is infinite

Which of the following would form a specular reflection.

• window glass

• ground glass

• paper

• rough metal

In the ray diagram shown, find the angle of incidence of the second ray.

•  $5\degree$  

•  $25\degree$  

•  $35\degree$  

•  $55\degree$  
  

•  $60\degree$