Vocabulary
What is angle formed between the incident ray and the normal line?
The angle of incidence
What is the magnification produced by a lens with an object distance of -0.3m and an image distance of +3.6m?
M=-12
What mirror's reflecting surface is towards the center of curvature?
A concave mirror
A lens has a focal length of 20 cm. An object is placed 30 cm in front of the lens. Calculate the image distance.
60 cm
What forms when the light rays appear to meet at a definite point, after reflection from the mirror?
A virtual image
A lens has a focal length of 15 cm. An object is placed at infinity (d0 = ∞) in front of the lens. Calculate the image distance.
15 cm
What is the distance from a lens/mirror at which light rays will meet?
The focal length
Peter Quill holds up a pocket convex lens 45 cm in front of Baby Groot. Peter keeps his free hand 30 cm from the lens on the other side and sees a 16 cm inverted image of Baby Groot on his hand.
What is the object height of Baby Groot?