You put a lens in front of phone screen and the light coming through the lens makes a large version of the image on your screen appear on the wall on the opposite side of the lens from your phone. If the lens is 200 cm from the image on the wall, and your phone was 10 cm on the other side of the lens how many times bigger would the image on the wall be compared to the size on your phone screen?

Q: Draw (a) a concave lens and (b) a convex lens. (a) Which lens is a converging lens? (b) Which…

A: to draw : A) concave lens B) convex lens

Q: a convex lens has a focal length of 20 cm, an object 12 cm tall is placed 8.0 cm in front of the…

A:

Q: Describe how the location and size of the real image of a light source changes if we start with the…

A: Given focal length of lens is positive i.e lens is a convex lens because it focus is real and to…

Q: You take a lens and mask it so that light can pass through only the bottom half of the lens. How…

A: How does the image formed by the masked lens compare to the image formed before masking?

Q: A concave lens has a focal length of -20 cm.  If an object is placed 50 cm in front of the lens,…

A: Given data The focal length of the object is, f=-20 cm The position of the object is u=50 cm The…

Q: The point where refracted light rays from a converging lens meet is known as the O diverging point O…

A: The point where refracted light rays from a converging lens meet is known as the focal point.

Q: An object with height of 5 cm is placed 15 cm in front of a convex lens with focal length 10cm. What…

A:

Q: Magnifying power of a simple microscope is inversely proportional to the focal length of the lens.…

A: Grinding lenses of very small focal lengths is not very easy.

Q: if you have a screen set up at the location of an image, what happens to the image you see on the…

A:

Q: A butterfly at eye level is 20 cm in front of a plane mirror. You are behind the butterfly, 50 cm…

A: A butterfly is 20 cm front of a plane mirror. Hence, the image formed will be at the same distance…

Q: A 7 cm high object placed in front of a pinhole camera forms a 7 cm high image in the film plane. If…

A: Given, Case 1) 7 cm high object placed in front of a pinhole camera forms a 7 cm high image in the…

Q: the focal length of a lens in a box camera is 11mm. The fixed distance between the lens and the film…

A: Using lens equation: 1/f = 1/u + 1/v f = focal length of box camera = 11 mm u = object distance from…

Q: A convex lens produces an image of a tree on a screen. If you cover half of the lens with tape what…

A: In the diagram, the bottom half convex lens is covered with tape. The left side of the tree is the…

Q: A convex lens has focal length f. If an object is placed at a distance beyond 2f from the lens on…

A: Given data:  The convex lens Focal length = f Object is placed beyond 2f from the lens on the…

Q: A image formed with a lens that can be projected onto a screen is called a/an imaginary real…

A: A image is formed with a lens that can be projected onto a screen.

Q: what type of lens is a magnify glass? Converging Lens Diverging Lens Plano Convex Lens Plano Concave…

A: we need to identify the lens used in magnifying glass

Q: What is the magnification of a lens if it makes an object that is 10 mm high appear to be 150 mm…

A: Height of object, ho=10 mm Height of image, hi=150 mm Let magnification be m.

Q: When you looks at your image in a bathroom mirror it is?   virtual or real reduced or same size…

A: Bathroom mirror is a plane mirror.

Q: Calculate the image distance in centimeters when an object is placed 5 cm away from a convex mirror…

A:

Q: You can tell whether a person is nearsighted or farsighted by looking at the size of their eyes…

A: Given:  Person eye seems to be magnified.

Q: For a converging lens the object is 10 cm from the lens and the image is 24 cm from the lens on the…

A: Given  Converging lens  Object is 10 cm  Image is 24 cm on opposite side  Magnitfication

Q: A converging lens with a focal length of +6.0 cm is placed 4.0 cm in front of a diverging lens with…

A: Given:focal length of converging lens, f1 = + 6.0 cmfocal length of the diverging lens, f2 = −2.5…

Q: What happens to the image distance in the eye when we increase the distance of an object from the…

A: The image distance in the eye does not change if the distance of an object from the eye is…

Q: A pebble 1 cm tall is placed 40 cm to the left of a +5-diopter lens. A -5-diopter lens is placed 30…

A: Given that A pebble 1 cm tall is placed 40 cm to the left of a +5-diopter lens. A -5-diopter lens is…

Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”