Ivor points a concave mirror at a candle across the room and holds a sheet of paper near the mirror. A sharp little candle appears on the paper, burning upside down.
The last lesson drew this case ray by ray. This lesson states its profile: the kind of image a concave mirror gives whenever the object stands beyond the focal point.
Ivor's candle stands far beyond the focal point of his mirror.
The paper catches the image, so the reflected beams really meet there: the image is real.
The little candle on the paper is upside down: the image is inverted.
The ray diagram said the same thing: the reflected rays crossed in front of the mirror, below the axis.
Real and inverted arrive together in this case. The profile is stated, and asked, as one answer.
A toy robot stands 40 cm from a concave mirror with a focal length of 15 cm. State the image profile.
The robot stands beyond the focal point: 40 cm is more than 15 cm.
With the object beyond the focal point, a concave mirror forms a real, inverted image.
The image is real and inverted.
Jorun can catch her concave mirror's image of a window on a card. Is the window beyond or inside the mirror's focal point?
A card catches the image, so the image is real.
A concave mirror forms a real image when the object is beyond the focal point.
The window is beyond the focal point.
A flashlight stands beyond the focal point of a concave mirror. Which profile fits the image the mirror forms?
Jorun's potted cactus sits 50 cm from a concave mirror with a focal length of 20 cm. Which profile fits its image?
Jorun says: 'A concave mirror can form an image that a screen can catch.' Is Jorun correct?
A lamp stands 60 cm from a concave mirror with a focal length of 25 cm. Which option describes its image?
A concave mirror forms a real, inverted image of a chess piece. Where must the chess piece stand?
Lennart points a concave mirror at a distant streetlight and holds a small white card where the reflected beams cross. What appears on the card?