Why ate the mirage effects produced over hot deserts ?
Answer Posted / sanju
Over hot deserts, the air touching the surface of the earth
is the lightests, because it hot. When a ray from the top of
the tree travels downwards, i.e passes from a denser into
the rarer layers of air, it is bent away from the normal
more and more. Finally, the angles of incidence becomes
greater than the critical angel and the total reflection
takes place. Now on traveling upwards, the rays passes over
from rare to denser layer of air and ate bent more mad more
towards the normal .At last , the rays enter the eye of the
observer. To him it appears to come from some other point.
The whole of the tree appears this manner. When the
traveller see the image, he takes it to be die to reflection
in water, but on reaching there he finds no water.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Explain how does the elevation and air pressure affect the boiling point of water?
What are the assumptions of quantum theory of black body radiation? : quantum physics
Explain what is free fall acceleration?
How long does the light from sun take to reach us?
An ice-box is built of wood 1.75 cm thick, lined with cork 3 cm thick. If in the steady state the temperature of the inner surface of the cork is 0 ºC and that of the outer surface of wood is 12 ºC, what is the temperature of the wood-cork interface? The thermal conductivities of wood and cork are 0.2 W/m-K and 0.04 W/m-K respectively
What is a synthesizer?
What is the effect of using two converging lenses in one optical instrument?
Explain what is the rectilinear propagation of light?
How does the arrangement of atoms in most solids differ from the arrangement of atoms in a liquid?
Explain radio telescopes?
Tell me how many neutrons and how many protons are present in a single deuterium nucleus?
What is the velocity of sound air?
What sound waves travel from air to water the frequency remains?
Why do you not collapse under the pressure created by the atmosphere?
Order the following categories of electromagnetic radiation from the lowest frequency to the highest? Fm radio, uhf tv, am radio, microwaves