General Knowledge - Physics - Discussion

Discussion :: Physics - Section 1 (Q.No.8)

8. 

Mirage is due to

[A]. unequal heating of different parts of the atmosphere
[B]. magnetic disturbances in the atmosphere
[C]. depletion of ozone layer in the atmosphere
[D]. equal heating of different parts of the atmosphere

Answer: Option A

Explanation:

No answer description available for this question.

Mahesh Verma said: (Sep 17, 2010)  
The Above Phenomenon is a great example of TOTAL INTERNAL REFLACTION, Which comes in account when light travels from denser medium to rearer medium, after some specific angle it again reflacts into the denser medium. Similar kind of activity happens in desert area called "Mirage" or "Marichica".

Rahul said: (Jan 31, 2011)  
It is due to refraction of light.

Bipin said: (Aug 13, 2011)  
This is due to the total internal reflection in the deserts.

S.M.Muthulakshmi said: (Sep 6, 2011)  
What is mean by mirage?

Sundar said: (Sep 6, 2011)  
Mirage - An optical illusion caused by atmospheric conditions, esp. the appearance of a sheet of water in a desert or on a hot road caused by the refraction of light from the sky by heated air.

Dhiraj said: (Sep 7, 2011)  
The different layers of earth are heated differently as the air become lighter as we move upwards from earth and because of different densities of air a phenomena TIR takes place and an illusion is created.

Sudheer said: (Apr 24, 2012)  
What are denser and rarer medium in mirage.

Priyanka said: (Apr 25, 2012)  
Why in desert generally we find mirage of water.

Akash Gourav said: (Jun 2, 2012)  
Caused mainly in desert where people from far feels possibility of water at that certain place.

Aditya Gautan said: (Apr 3, 2013)  
It seems in desert. It is a special condition in which we appears natural situation which actually not happen.

Bhuvaneshwari said: (May 4, 2013)  
Its not only found in deserts we can come across this phenomenon in our daily life eg:sometimes we can see mirage image of tree.

Shivendra Shukla said: (May 7, 2013)  
This phenomenon is due to the fact that during days the hot air rises and cold air descends down and we know that hot air is more denser than cold one so rays are totally reflected back and therefore this phenomenon takes place.

Gopikrishna said: (Jul 14, 2013)  
What is mirage?

Mery said: (Dec 26, 2013)  
It is due to total internal reflection.

Uzair Khan said: (Apr 13, 2014)  
What is mirage tree?

Varshitha said: (Apr 25, 2014)  
It is due to the total internal reflection that the ray refracts from denser to rarer.

Bala Kumar said: (Jan 19, 2015)  
Light refracting upwards results in an inferior mirage.

Light refracting downwards results in a superior mirage.

E.g. Long sight fake water on road.

Satish said: (Apr 6, 2015)  
It is a phenomenon caused in the atom.

Mukesh Baski said: (Sep 29, 2015)  
It is because total internal refraction.

Romanus Okoro said: (Jan 3, 2016)  
A mirage is a pool of water ahead of a traveler on a hot sunny day and it is as a result of total internal. It disappears as the traveler approaches it.

Abhi said: (Feb 12, 2016)  
Light travels from denser to rarer medium.

Aryan said: (Jul 7, 2016)  
Because of the refraction of light.

Nikhil Jose said: (Dec 25, 2016)  
Unequal heating of different layers of atmosphere causes different temperature for different layers and as a result different densities which further adds that the speed of light will be different in these layers (layers will be having different refractive index) ie, white going higher from the surface the refractive index decreases and the layers becomes rearer and light ray going up from surface after passing each layer of atmosphere bends away from normal (because it passes from denser to rearer medium) and at a particular angle it suffers total internal reflection and comes back to the surface and falls on a person eye (this is called a mirage).

Sudeep.Vk said: (Mar 19, 2017)  
Mirage is on hot summer days the layer of air in contact with the sand becomes hot and rare. When the light rays travel from denser to rarer, they undergo total internal reflection. Thus image of the distant object is seen inverted.

Saurabh said: (Mar 29, 2017)  
According to me, it's due to the Interference of light.

Abir said: (May 23, 2017)  
It is Due to total internal reflection of light.

P.Ravi said: (Jun 5, 2017)  
It is an optical illusion. So, A is the correct option.

Wajid said: (Jul 14, 2017)  
What is a marine?

Santosh said: (Jul 18, 2017)  
@Wajid.

Marine is an adjective for things relating to the sea.

Cele said: (Dec 3, 2017)  
Why mirage cannot occur in wet area?

Yashwanth. S said: (Jan 3, 2018)  
What is meant by Mirage?

Aragbuwa Margaret said: (May 17, 2018)  
Mirage is an effect caused by hot air in a desert which makes you think you can see the object when they are not actually there.

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