Two light rays originate from object A, at a distance of 50 cm in front of a flat mirror, diverging at an angle of 10°. Both of the rays strike a flat mirror and reflect. Two light rays originate from object B, at a distance of 50 cm in front of a convex mirror, diverging at an angle of 10°. Both of the rays strike the convex mirror and reflect. For which object do the reflected rays appear to converge behind the mirror closer to the surface of the mirror, thus forming a closer (larger) image? Explain with the help of a sketch or diagram.

Q: An object is placed at a distance 2f to the left of a thin magnifying lens of focal length f. The…

A: A lens is an optical tool with a certain refractive index, used to refract light rays. Lenses can be…

Q: Sunlight strikes the surface of a lake. A diver sees the Sun at an angle of 42° with respect to the…

A: (given) Refractive index of air (ni) = 1 Refractive index of water (nf) = 1.33 Angle of refraction…

Q: Please refer to Figure 2. A light beam shines through air and then strikes a mirror, making an angle…

A:

Q: A small object is 25.0 cm from a diverging lens as shown in the figure. A converging lens with a…

A: Step 1:

Q: You've been asked to set up a demonstration that uses a concave spherical mirror to form images…

A: Given, the radius of curvature of the concave mirror is R=60cm So focal length of the concave mirror…

Q: An object is placed at x = 0 and a converging lens, with f1 = +25.0 cm, at x = 38.0 cm. A concave…

A: Given:object is at , x = 0 converging lens is at, x = 38.0 cmconcave mirror is at, x = 85.0 cmfocal…

Q: An object is placed at x = 0 and a converging lens, with f1 = +25.0 cm, at x = 38.0 cm. A concave…

A: position of object : x = 0 m position of converging lens = 38 cm focal length of converging lens =…

Q: An underwater diver sees the sun 56 degrees above horizontal. How high is the sun above the horizon…

A: The problem is solved by using Snell's law…

Q: A small bead 2.75 [mm] in size is located 21.0 [cm] from the center of a concave spherical mirror…

A:

Q: A concave, spherical mirror and a thin, converging lens are both measured in air (n=1.0) to have the…

A:

Q: Consider the two lens system shown below, consisting of a diverging lens on the left and a…

A: In the given question, Focal length of concave lens (f1) =  -3cm (using sign convention) Focal…

Q: Please refer to Figure 2. A light beam shines through air and then strikes a mirror, making an angle…

A:

Q: You have a concave (diverging) lens with a −35 cm focal length. The magnification produced by the…

A: The u-v-f relation for lens is 1v-1u=1f     ....(1) The magnification is m=vu          .....(2) Here…

Q: You are working for an electronics company that makes devices for the home. Your supervisor has…

A: Given Data: The radius of a cylinder is, R =3.25 cm The range of distances is 0.500 m to 4.00 m…

Q: Consider the following arrangement. At x = 0 there is  a concave mirror with a 80 cm radius, at x =…

A: The question states that if the Earth had constant density, then the gravitational force would…

Q: Suppose you have a concave mirror as shown in the image below.  If h = 0.83m is the height of an…

A:

Q: Consider the following arrangement. At x = 0 there is  a concave mirror with a 80 cm radius, at x =…

A: Approach to solving the question: Detailed explanation:Examples: Key references:

Q: The magnitudes of the radii of curvature are 31.8 cm and 41.2 cm for the two faces of a biconcave…

A: The magnitude of radii of curvature are,The index of refraction of violet light is .The index of…

Q: The place you get your hair cut has two nearly parallel mirrors 5 meters apart. As you sit in the…

A:

Q: Consider the following arrangement. At x = 0 there is  a concave mirror with a 80 cm radius, at x =…

A:

Q: Consider a bi-convex lens with a diameter of 5 cm and zero thickness at its edges. A point object on…

A:

Q: Kyle lays a mirror flat on the floor and aims a laser at the mirror. The laser beam reflects off the…

A:

Q: You are standing 1.2 mm from a mirror, and you want to use a classic camera to take a photo of…

A:

Q: consider that the "lens" is a hollow region of air (n=1) surrounded by glass (n=1.5). i.e. describe…

A: Given that:

Q: An object is placed in front of a diverging lens with a focal length of 18.5 cm. For each object…

A:

Q: object is placed a distance of 4.16f from a converging lens, where f is the lens's focal length.…

A: Given u = - 4.16 fHere,  ' f ' is the focal length of the converging lens.

Q: An office copier uses a lens to place an image of a document onto a rotating drum. The copy is made…

A: Solution A) The lens has to focus the image onto the rotating drum so the lens we need to use is a…

Q: An object is placed at x = 0 and a converging lens, with f1 = +25.0 cm, at x = 38.0 cm. A concave…

A:

Q: at distance d, = 320 cm above the surface of the water in a swimming pool where the pool is a large…

A:

Q: An object is placed at x = 0 and a converging lens, with f1 = +25.0 cm, at x = 38.0 cm. A concave…

A:

Q: Two convex lenses A and B, each of focal length 25 cm, are placed 80 cm apart on the same axis. A 12…

A: Given: The focal length of the lenses is 25 cm. The distance between the lenses is 80 cm. The height…

Q: (a) Explain the steps to obtain the image formed by a convex mirror. (b) Describe the properties of…

A:

Q: A car is moving along the x-axis, in the positive x-direction, at 28.8 km/h and coming from far to…

A:

Q: Big bird is frightened to see a magnified image of himself in a spherical mirror of focal length 100…

A:

Q: n object is placed at x = 0 and a converging lens, with f1 = +25.0 cm, at x = 38.0 cm. A concave…

A: Given: The focal length of the converging lens is 25.0 cm at x=38.0 cm.             The focal length…

Q: If a plane mirror rotates through an angle a = 15°, then the reflected beam would be deflected by an…

A:

Q: The place you get your hair cut has two nearly parallel mirrors 7.0 mm apart. As you sit in the…

A:

Q: Two rays traveling parallel to the principal axis strike a large plano-convex lens having a…

A: The Refractive index of a plano-convex lens is 1.60 The radius of curvature of the face 21.0 cm…

Q: Problem A small mirror is attached to a vertical wall, and it hangs a distance of 1.79 m above the…

A:

Q: A ball is dropped from rest 3.20 m directly above the vertex of a concave mirror having a radius of…

A: Given Data : The distance of the ball from the concave mirror is given as u = 3.20m. The radius of…

Q: When a patient is being fitted with contact lenses, the curvature of the patient's cornea is…

A:

Q: Jennifer stretches in front of the 2.0 m tall mirror in her hallway, aiming the green laser pointer…

A: x = 0.44 mExplanation:

Q: Where should an object be placed in front of a convex lens to get a real image of the size of the…

A: The real image formed by convex lens will be inverted and of same size as the object, hence…

Photoelectric

The photoelectric effect occurs when light (or similar incident radiation, including X-rays) falls on material together with a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories (and to a Nobel Prize for Albert Einstein). Photoelectric cells, or photocells, are utilized in burglar-alarm light detectors and garage-door openers (each employs a through-beam of light this is broken when something movements throughout it), and also to play soundtracks on film movies (in which a light beam shines through the soundtrack encoded at the film and is "read" with the aid of the photocells).