Find the odd man out reflection neutralization refraction dispersion
The questions posted on the site are solely user generated, Doubtnut has no ownership or control over the nature and content of those questions. Doubtnut is not responsible for any discrepancies concerning the duplicity of content over those questions. Study Materials. Crash Course.
- Odd one out - dispersion, refraction ,spectrum, transformation
- Odd man out. -. reflection, neutralisation, refraction, dispersion
- Find odd one out. Refraction dispersion, refraction, transformation and why
- Find three consecutive integers so that the sum of the first two is seventeen more than the
- EP1047550A1 - Color shifting film - Google Patents
Odd one out - dispersion, refraction ,spectrum, transformation
A great deal of evidence suggests that light is a wave and under a wide range of circumstances, light travels in a straight line. For example, sunlight casts sharp shadows. Another example is refraction where light passes from one transparent medium into another figure 1. Such observations, has led to the ray model of light. A ray is an idealization that represents an extremely narrow beam of light. According to the ray model, we see an object because light reaches our eyes from each point on the object.
Although the light leaves a point on the object in all directions, only a small bundle enters your eye. The ray model of light has been very successful in explaining many aspects of the behaviour of light such as reflection, refraction, dispersion, and the formation of images by mirrors and lenses. We can use a ray model to explain the straight line propagation of light. How do we see? A small bundle of light rays come from each single point on an object and enters your eye.
When a ray of light of is obliquely incident upon a medium of different refractive index, the ray is bent. Refraction is responsible for several common optical illusions. When you look into a lake and see a fish — where is the fish located?
Where is the fish located? Thinking Exercise. When you watch a person standing in waist-deep water, it appears that their legs are shorter. Explain this observation using a scientific annotated ray diagram. Figure 3 shows a ray of light that emerges from a rectangular slab of glass such that the direction of the beam of light is unchanged.
Light passing through a glass slab. Why does a diamond sparkle? The refractive index of glass is 1. The critical angle for glass is 41 o and the critical angle for diamond is Check the calculations for the critical angles for diamond and glass. When light enters a cut diamond, the large refractive index compare with air results in the strong dispersion of the light and this dispersed light is mostly incident on the sloping backsides of the gem at angles greater than Further dispersion occurs as the light exists through the many facets of its face.
Why do we see the Sun after it has set? Because of refraction, when the Sun is near the horizon, it appears higher in the sky than it actually is. So, if you watch a sunset, we see the Sun for several minutes after it has sunk below the horizon and thus, slightly more daylight each day.
Since the density of the atmosphere changes gradually, the light also bends gradually to propagate in a curved path. When the Sun Moon is near the horizon, the rays from the lower edge are bent more than the rays from the top edge — this produces a reduction in the vertical diameter causing the Sun Moon to appear flatten like a pumpkin. A mirage is an optical phenomenon that creates the illusion of water or an inverted reflection and results from the refraction of light through a non-uniform medium.
You may see a mirage when driving along a hot road — the distant road appears to be wet, yet it is dry. The air near the surface of the road is hot and much cooler above. Light travels faster through the thin hotter air then it does through the denser and more cooler air.
So, instead of the light travelling in a straight line, it travels in a curved line — the wetness on the road we observe is a reflection of the sky.
The bending of light is simply refraction and is a consequence of light having different speeds in different media. The colour of light is related to its wavelength or frequency. Electromagnetic spectrum. When different colours fixed wavelengths are mixed together in certain combinations, our eye perceives the light to be white. This occurs because the index of refraction of a material depends upon the wavelength of the light — the shorter the wavelength, the higher the refractive index.
Index of refraction as a function of wavelength for some transparent solids. White light is a mixture of all the visible wavelengths, so when the white light enters the glass prism, different wavelengths colours will be bent through different angles refraction.
Because violet light is bent the most and red light the least, the white light is separated into its component colours and this phenomenon is called dispersion. White light dispersed by a glass prism into the visible spectrum. Rainbows are a spectacular example of dispersion caused by reflection and refraction from droplets of water. You observe a rainbow by looking at falling water drops with the Sun at your back. The red light is bent the least and is observed higher in the sky, whereas violet light is bent the most and is observed lower in the sky.
Rainbows are formed by reflection and refraction of sunlight from falling water droplets. If you have any feedback, comments, suggestions or corrections please email:.
Thinking Exercise When you watch a person standing in waist-deep water, it appears that their legs are shorter. MIRAGES A mirage is an optical phenomenon that creates the illusion of water or an inverted reflection and results from the refraction of light through a non-uniform medium.
Odd man out. -. reflection, neutralisation, refraction, dispersion
A great deal of evidence suggests that light is a wave and under a wide range of circumstances, light travels in a straight line. For example, sunlight casts sharp shadows. Another example is refraction where light passes from one transparent medium into another figure 1. Such observations, has led to the ray model of light.
Ekman; P. Godefroid; C. RIS 4: A program for relativistic isotope shift calculations. Gans; S.
Find odd one out. Refraction dispersion, refraction, transformation and why
The effect of the incident angle and collision energy on the porosity and surface area of the vapor-deposited water films was studied using nitrogen physisorption and infrared spectroscopy. Both techniques show that the morphology of vapor-deposited water films depends strongly on the incident kinetic energy. These observations are consistent with a ballistic deposition shadowing model used to describe the growth of highly porous materials at glancing angle. The dependence of film morphology on incident energy may have important implications for the growth of porous materials via glancing angle deposition and for the structure of interstellar ices. Water and silicon are chemically dissimilar substances with common physical properties. Their liquids display a temperature of maximum density, increased diffusivity on compression, and they form tetrahedral crystals and tetrahedral amorphous phases. The common feature to water, silicon, and carbon is the formation of tetrahedrally coordinated units. We exploit these similarities to develop a coarse-grained model of water mW that is essentially an atom with tetrahedrality intermediate between carbon and silicon.
Find three consecutive integers so that the sum of the first two is seventeen more than the
EP1047550A1 - Color shifting film - Google Patents
Environmental Protection Agency, have been grouped into nine series. These nine broad cate- gories were established to facilitate further development and application of en- vironmental technology. Elimination of traditional grouping was consciously planned to foster technology transfer and a maximum interface in related fields.
Such scales include the ideal gas absolute scale , the thermodynamic Kelvin temperature scale and the International Practical Temperature Scale Each absorption transition gives rise to an absorption line in an appropriate absorption spectrum. AC circuit, a. The magnitude of this acceleration is given the symbol, g and has the approximate value 9. Contrast with unaccommodated eye. The greater the accuracy, the smaller is its numerical value.