Is there a material which can allow light (or any other EM radiation) to pass through...

Is there a material which can allow light (or any other EM radiation) to pass through from one side as if it is transparent but its other side reflects light like a mirror?

Solutions

Expert Solution

Partially coated (silvered) mirrors could do the job, if you've got some radiation of high intensity. For example, a laser. The intense beam comes out through the partial-mirror after a series of constructive reflections. Wiki doesn't have a good article on one-way windows. But, Googling it can throw a lot of results. These one-way mirrors are imaginary.

Say you're in a car and I'm out. Well, most of the cars today have these semi-reflective mirrors. If I try to peek into the car from quite a distance, I can't see you. But if I come closer enough (or stick to the glass), I can see who's hiding inside. But, this shouldn't happen with a perfect one-way mirror. I shouldn't see you at all. But, you can see me completely. Hence, we conclude that this is not practically allowable as it would violate second law of thermodynamics.

(Perhaps, there is a hiding answer in - Why does a window become a mirror at night?)

genius_generous answered 2 days ago

Next > < Previous

Related Solutions

What characteristics allow a molecule to pass freely through a cell membrane?

Light can be seen through glass, water, and other transparent materials. When light is incident on...

Light can be seen through glass, water, and other transparent materials. When light is incident on a transparent material (such as water) at an angle, which of the following are true? (Select all that apply.) A. The light will all be reflected and will not enter the transparent material. B. The speed of the light changes as it enters the transparent material. C. The frequency of the light changes as it enters the transparent material. D. The speed of light...

Develop a promotional message. This can be an email, letter, or any other relevant material that...

Develop a promotional message. This can be an email, letter, or any other relevant material that answers why should students take a Professional Communications course.

12 structures light must pass through in order to get through the eye and reach the...

12 structures light must pass through in order to get through the eye and reach the actual photoreceptors called cones the first ten are: Bulbar Conjunctiva Cornea Aqueous Humor Lens Vitreous Humor Ganglion Cell layer Inner synaptic layer Bipolar Layer Outer Synaptic Layer Photoreceptor Layer are there any im missing or what would be the last two. i have to have twelve.

Describe the two ways in which radiation can hurt people. What are the prejudices and other...

Describe the two ways in which radiation can hurt people. What are the prejudices and other mistaken ideas that people think are true but aren’t? Give examples from two historical events. Give relevant numbers if you remember them; if you don’t, make good guesses (and state that they are guesses). Is radiation ever administered to people on purpose? Explain.

which of the following can pass through a lipid bilayer(without the assistance of a transport protein)?...

which of the following can pass through a lipid bilayer(without the assistance of a transport protein)? select all that apply: CH3- NH3+ water H2PO4- aspartane(an amino acid)

1. What is the index of refraction of a material for which the wavelength of light...

1. What is the index of refraction of a material for which the wavelength of light is 0.83 times its value in a vacuum? 2. A diffraction grating has 2400 lines per centimeter. At what angle in degrees will the third-order maximum be for 636 nm wavelength light? 3. What is m for the highest-order maximum for 462 nm light falling on double slits separated by 19.5 μm? Remember, m can only be an integer. Plz answer all, don't have...

. Light travels at different speeds through materials due the refractive index of that material. Given...

. Light travels at different speeds through materials due the refractive index of that material. Given that I have a transparent polymer material, would light travel faster or slower through it if it (a) have zero stress on it or (b) have a substantial, but still elastic, stress on it (say 20 MPa for HDPE)? Explain.

1. Parallel light rays pass through a converging lens and a. stay parallel b. all travel...

1. Parallel light rays pass through a converging lens and a. stay parallel b. all travel to a point that is at a defined distance away from the lens c. diverge rapidly d. reflect back to a point in front of the lens 2. For a lens with a given focal length of 10 cm and an object placed 15 cm in front of it, where is the image located? a. 30 cm b. 10 cm c. 20 cm d....

Explain five ways through which people are exposed to ionizing radiation.

Subjects