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Concave spherical mirrordiagram

What type of mirror is required to form an image, on a wall \(3 \mathrm{~m}\) from the mirror, of the filament of a headlight lamp \(10 \mathrm{~cm}\) in front of the mirror? (b) What is the height of the image, if the height of the object is \(5 \mathrm{~mm}\) ?

Light can be polarised by passing it through a polarising filter. A polarising filter has all its molecules aligned in the same direction. As a result, only waves with vibration aligned in the same direction can pass through.

Since only a small selection of the waves can pass through a polarising filter, the overall intensity of the light is reduced. This is why sunglasses can be polarised: to reduce brightness and glare without compromising your vision.

Light is also partially polarised when it bounces off a shiny surface. For example, the light that reflects off a horizontal surface, such as a puddle, is mostly horizontally polarised. Polarised sunglasses are usually vertically polarised to reduce the glare from puddles or wet roads.

Convexspherical mirror

An object is placed 1 foot from a concave mirror of radius 4 feet. If the object is moved 1 inch nearer to the mirror, what will be the corresponding displacement of the image?

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Concave spherical mirrorequation

An object is 4 in. to the left of the vertex of a concave mirror of radius of curvature 12 in. Find the position and magnification of the image.

Concave mirrorexamples

Some animals can see in polarised light, including the fiddler crabs and mantis shrimp in David Attenborough's Life in Colour.

A gas-flame is \(8 \mathrm{ft}\). from a wall, and it is required to throw on the wall a real image of the flame magnified three times. Determine the position of the object with respect to a concave mirror which would give the required image. In addition, find the focal length of the mirror.

Achromats represent the classic, popular, modern lens telescope design. An achromat consists of not one but of two objective lenses, usually made of crown ...

An apheric lens is ideal for light collection, projection, illumination, detection, and condensing applications. Click for more info on our ...

Concave spherical mirrorvsconcave mirror

Sep 13, 2008 — If the surface is flat, all 3 points will touch no matter where you place it.

Flat light is a type of lighting that is evenly spread across the subject and results in minimal shadows. This makes it a popular choice for portrait ...

Difference betweenconcaveand convexmirror

Concave spherical mirrorImage

Light is a transverse wave: the wave is S-shaped, with the curves of the S at right angles to the direction it travels. Essentially, the wave vibrates up and down as it travels forwards.

Conversely, the angle of view varies in accordance with the image size. The focal lengths in the catalog are nominal and the angles of view calculated by the ...

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by VM Kozenkov · 2022 — 3 2. PHYSICAL PRINCIPLES OF THE FORMATION OF THIN-FILM POLARIZERS. The polarizer divides the initial beam of unpolarized light into two ...

The compound microscope has two systems of lenses for greater magnification, 1) the ocular, or eyepiece lens that one looks into and 2) the objective lens, or ...

Convexmirror

A concave spherical mirror has a radius of curvature of \(50 \mathrm{~cm}\). (a) Find two positions of an object for which the image is four times as large as the object. (b) What is the position of the image in each case? (c) Are the images real or virtual?

Imagine holding a skipping rope so that it passes between the posts of a picket fence, and waving it up and down. The vertically aligned waves will be able to pass between the gap in the fence posts. But if you wave it from side to side, the waves will be blocked.

But 'up' and 'down' are not fixed directions. The vibrations could be vertical, horizontal, or at any angle in between. In fact, the waves that make up sunlight, for example, are evenly distributed across all angles.