Optics Flashcards
What is a concave mirror?
A concave mirror is a mirror that curves inward, resembling a bowl shape.
What is a convex mirror?
A convex mirror is a mirror that curves outward, making it bulge away from the object.
True or False: Concave mirrors can produce real images.
True
True or False: Convex mirrors can produce real images.
False
Fill in the blank: Concave mirrors are often used in __________ applications.
focusing light
Fill in the blank: Convex mirrors are commonly used for __________.
safety and security
What type of image do concave mirrors produce when the object is placed beyond the center of curvature?
A real and inverted image.
What type of image do convex mirrors always produce?
A virtual and upright image.
Multiple Choice: Which mirror type is used in makeup mirrors for magnification? A) Concave B) Convex
A) Concave
Multiple Choice: Which mirror is typically used in car side mirrors? A) Concave B) Convex
B) Convex
What is the focal point of a concave mirror?
The point where parallel rays of light converge after reflecting off the mirror.
What is the focal point of a convex mirror?
The point from which light rays appear to diverge after reflecting off the mirror.
True or False: The focal length of a concave mirror is positive.
True
True or False: The focal length of a convex mirror is negative.
True
What is the principal axis of a mirror?
The line that passes through the center of the mirror and its focal point.
Fill in the blank: The image produced by a concave mirror can be __________ depending on the object’s distance.
real or virtual
What happens to the image produced by a convex mirror as the object moves closer?
The image remains virtual and diminishes in size.
Multiple Choice: Which mirror type has a wider field of view? A) Concave B) Convex
B) Convex
What is the equation for the mirror formula?
1/f = 1/v + 1/u, where f is the focal length, v is the image distance, and u is the object distance.
Fill in the blank: A concave mirror can form a __________ image if the object is located between the focal point and the mirror.
virtual
What type of lens is similar in function to a concave mirror?
A converging lens.
What type of lens is similar in function to a convex mirror?
A diverging lens.
True or False: Concave mirrors are used in telescopes.
True
True or False: Convex mirrors are used in optical instruments that require precise focusing.
False
