Module 4 (Phenomena of light)

Al-Walli Bayotlang · 44問 · 1年前

通報

問題一覧

The outer bulging reflecting surface of a spoon acts like a ______________.

Convex mirror

______________produces an image that is virtual, upright and smaller than the object.

Convex mirror

The hallowed reflecting surface of the spoon acts like ____________.

Concave mirror

The appearance of the image in a _______________depends on how close the object is to it.

Concave mirror

_________________ we see depends on its ability to reflect or to transmit the light incident to it.

The colors of the object

_________________ takes place on opaque objects when light is incident to it.

Selective reflection

________________ takes place on transparent objects when light is incident to it.

Selective transmission

__________ plays a role in optical illusions like mirages and rainbows.

Refraction

______________is an optical phenomenon that creates illusion of water that results from the bending of light because of the gradient in the air temperature.

Mirage

______________ are formed because of refraction, reflection and dispersion of light as it passes through water droplets acting as tiny prisms. It appears in the section of the sky directly opposite from the sun.

Rainbow

A ______________ is formed when two total internal reflections and refraction occur in the water droplets. It appears outside and higher than the primary rainbow with an opposite color sequence.

Secondary rainbow

_______________ are thin, pastel colored bands or fringes appearing below the primary rainbow adjacent to the violet band due to the interference of light.

Supernumeraries

A ________ is a ring of light that forms around the sun or moon due to the refraction of light in the suspended ice crystals in the atmosphere.

Halo

______________ are bright white or colored patches of light developed because of refraction of light through ice crystals. They are also known as mock suns or parhelia which means “with the sun”

Sundogs

____________ particles in the atmosphere scatters blue light because of Rayleigh scattering resulting to blue sky.

Small gas

_____________ are made up of water droplets which are larger than air molecules, thus all colors are scattered equally. All colors combined to make white light.

Clouds

____________ must travel through more of the atmosphere during sunset. More blue light is scattered, leaving red light transmitted. Only light of lower frequencies survives, producing red sunsets

Sunlight

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