To analyze the statements about concave lenses:
-
Concave lenses can be used in laser pointers to intersect the projected light to a single point.
- This statement is incorrect. Concave lenses diverge light rays, meaning they spread out the light rather than focusing it to a single point.
-
Concave lenses can be used in car headlights to expand the projected light outwards.
- This statement is correct. Concave lenses can help to spread out light, which can be useful in car headlights to illuminate a wider area.
-
Concave lenses can be used in mirrors to make objects appear closer than they really are.
- This statement is incorrect. It is convex mirrors that create a wider field of view and make objects appear smaller and farther away, not concave lenses.
-
Concave lenses can be used in microscopes to make microscopic objects visible.
- This statement is partially correct since concave lenses are used in some optical instruments, but generally, convex lenses are more commonly used in microscopes to magnify objects.
Based on the analysis, the most accurate and applicable statement is:
Concave lenses can be used in car headlights to expand the projected light outwards.