What can light pass through clearly?
Your question is somewhat difficult to interpret, but presumably you are referring to visible light and the word "clearly" is key. Many media are transparent to the electromagnetic radiation we call light. Light passes through a vacuum freely, without obstruction or change. A wide range of gasses and solids transmit light (permit light to pass through) in varying degrees. Clear glass is highly transparent. Gold hammered to a thickness of a few atoms is translucent. These denser media cause temporary or permanent change to light waves passing through them. Glass causes the light to slow down slightly so that a wave front striking a flat clear glass surface obliquely is bent. Upon exiting a parallel surface into its original, less dense medium, it resumes its original speed and direction. White light is made up of a continuous spectrum of wavelengths and corresponding frequencies that we see as a rainbow of colors. White light passing into a thin sheet of gold is diffused (scattered), and while all wavelengths are absorbed to some degree, only a small amount of green light actually emerges. Light is affected by any medium other than vacuum by slowing, absorption in all or some wavelengths, and diffusion. All media denser than vacuum slow and absorb, but diffusion is a function of the clarity of the material.
An earlier answer said light passes through darkness. Somewhat poetic, perhaps, but not quite accurate. Darkness is definable as the absence of light, but if you consider light in a broader definition encompassing the entire electromagnetic spectrum, from low frequency long radio waves to very high frequency short waves like X-rays and gamma rays, you would be hard pressed to find a truly dark place anywhere in the Universe, if only you have the means to see.
A book isn't translucent, it's opaque. A transparent object allows most of the light to pass through it allowing us to see through clearly through it. A translucent object allows some of the light to pass through it allowing us to see through it to a limited extent. An opaque object allows no light to pass through it and does not allow us to see through it at all.
Why might someone describe sunglasses a translucent even though objects on the other side a clearly visible?
Transparency is defined as a quality an object has that allows light to pass through it and any objects on the opposite side can clearly be seen through through the transparent object. Translucent objects still allow light to pass through them, but the objects on the opposite side are not clearly visible. It could be likened to two pieces of glass. One is from a window and the other is frosted. The one piece from…
It reflects off of the object, and this is the light we see when we view opaque objects; it can be absorbed by the object, and we do not see this light; or the light can pass through the object in such a way that we can clearly 'see through' the object, such as transparent glass, or light can pass through the object and only appear as a glow, not an image, as is the…
Ziplock bags are usually transparent in that they pass light in such a way that you can see clearly through them. Plastic ice cream containers are more likely to be translucent meaning that they will pass a certain amount of light but in a scattered way that does not allow you to actually see through it.
Why will light pass through a pair of polaroids when the axes are aligned but not when the axes are at right angles to each other?
A polaroid allows light to pass through it in only one plane. If both polaroids are aligned, they will allow light to pass through the same plane. Otherwise, each will allow light to pass through a different plane and the overall effect of the two polaroids is that it will not allow light to pass through them.
opaque is anything that is not see-through or translucent. if light can not pass through opaque objects so it forms a shadow. Examples of opaque objects are: *human beings and animal *trees *cardboard and anything which is solid and with a solid colour transparent objects allow light to pass through them and one can see objects at the other end. the light passes through without being disturbed examples: *water *clear plastic and glass translucent objects…