Optics

Question 1

What is a concave mirror?

Answer 1

A concave mirror is a mirror that curves inward, resembling a bowl shape.

Question 2

What is a convex mirror?

Answer 2

A convex mirror is a mirror that curves outward, making it bulge away from the object.

Question 3

True or False: Concave mirrors can produce real images.

Answer 3

True

Question 4

True or False: Convex mirrors can produce real images.

Answer 4

False

Question 5

Fill in the blank: Concave mirrors are often used in __________ applications.

Answer 5

focusing light

Question 6

Fill in the blank: Convex mirrors are commonly used for __________.

Answer 6

safety and security

Question 7

What type of image do concave mirrors produce when the object is placed beyond the center of curvature?

Answer 7

A real and inverted image.

Question 8

What type of image do convex mirrors always produce?

Answer 8

A virtual and upright image.

Question 9

Multiple Choice: Which mirror type is used in makeup mirrors for magnification? A) Concave B) Convex

Answer 9

A) Concave

Question 10

Multiple Choice: Which mirror is typically used in car side mirrors? A) Concave B) Convex

Answer 10

B) Convex

Question 11

What is the focal point of a concave mirror?

Answer 11

The point where parallel rays of light converge after reflecting off the mirror.

Question 12

What is the focal point of a convex mirror?

Answer 12

The point from which light rays appear to diverge after reflecting off the mirror.

Question 13

True or False: The focal length of a concave mirror is positive.

Answer 13

True

Question 14

True or False: The focal length of a convex mirror is negative.

Answer 14

True

Question 15

What is the principal axis of a mirror?

Answer 15

The line that passes through the center of the mirror and its focal point.

Question 16

Fill in the blank: The image produced by a concave mirror can be __________ depending on the object’s distance.

Answer 16

real or virtual

Question 17

What happens to the image produced by a convex mirror as the object moves closer?

Answer 17

The image remains virtual and diminishes in size.

Question 18

Multiple Choice: Which mirror type has a wider field of view? A) Concave B) Convex

Answer 18

B) Convex

Question 19

What is the equation for the mirror formula?

Answer 19

1/f = 1/v + 1/u, where f is the focal length, v is the image distance, and u is the object distance.

Question 20

Fill in the blank: A concave mirror can form a __________ image if the object is located between the focal point and the mirror.

Answer 20

virtual

Question 21

What type of lens is similar in function to a concave mirror?

Answer 21

A converging lens.

Question 22

What type of lens is similar in function to a convex mirror?

Answer 22

A diverging lens.

Question 23

True or False: Concave mirrors are used in telescopes.

Answer 23

True

Question 24

True or False: Convex mirrors are used in optical instruments that require precise focusing.

Answer 24

False

Question 25

What is the main advantage of using a convex mirror?

Answer 25

It provides a wider field of view.

Question 26

What is the main disadvantage of using a concave mirror?

Answer 26

It can produce distorted images if the object is too close.