Questions tagged 'optics'
9 questions
Which statement best describes the principle of camera obscura
What statement most accurately describes the principle of camera obscura?
A 4.0 cm tall candle flame is 2.0 m from a wall.
A candle flame measuring 4.0 cm in height is positioned 2.0 m away from a wall. You have a lens with a focal length of 32 cm. How many positions can you place the lens to create a well-focused image o...
Feb 05, 2025
A nearsighted woman has a far point of 314 cm. What kind of lens, converging or diverging, should be prescribe?
A nearsighted woman has a far point of 314 cm. What type of lens—converging or diverging—should be prescribed to help her see distant objects more clearly? Additionally, what should be the power of th...
spherical mirrror 2?
You wish to create an image that is 10 meters away from an object. This image should be inverted and half the height of the object. You plan to achieve this using a single spherical mirror. Part A: Wh...
A virtual image produced by a lens is always?
A virtual image produced by a lens is always: A. larger than the object B. smaller than the object C. located in front of the lens D. located behind the lens
Dec 08, 2024
A typical mirror in a person’s house would be an example of a/an _______ mirror.?
A typical mirror found in a person's home is an example of a/an _ mirror. A. convex B. angular C. plane D. concave
A guy named Joe, who is 1.6 meters tall, enters a room in which someone has placed a large convex mirror with?
A man named Joe, who is 1.6 meters tall, enters a room where a large convex mirror has been placed. The mirror has a radius of curvature (R) of 30 meters and has been cut in half, with its axis positi...
Nov 04, 2024
Which type of lens shrinks the image in front of it rather than magnifies it?
Which type of lens reduces the size of the image in front of it, rather than magnifying it? Is it A) Digital zoom?
What type of image is formed and what is the size relative to the object?
An object is placed at a distance of 1.5f from a converging lens with a focal length of f, as illustrated. What type of image is formed, and what is the size of the image relative to the object? Optio...