हिंदी

Name the Phenomenon Which Enables an Empty Test Tube Placed Inside Water Shine like a Mirror.

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प्रश्न

Name the phenomenon which enables an empty test tube placed inside water shine like a mirror.
एक पंक्ति में उत्तर
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उत्तर

The phenomenon is total internal reflection
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अध्याय 2: Light - Graded Assignment 2.1 [पृष्ठ ११५]

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फ्रैंक Physics Part 2 [English] Class 10 ICSE
अध्याय 2 Light
Graded Assignment 2.1 | Q 6. | पृष्ठ ११५

संबंधित प्रश्न

The figure shows a ray of light falling normally on the face AB of an equilateral glass prism having refractive index`3/2`, placed in water of refractive index `4/3`.Will this ray suffer total internal reflection on striking the face AC? Justify your answer.


In the given figure PQ and PR are the two light rays emerging from an object P. The ray PQ is refracted as QS. 

 

  1. State the special name given to the angle of incidence ∠PQN of the ray PQ.
  2. What is the angle of refraction for the refracted ray QS?
  3. Name the phenomenon that occurs if the angle of incidence ∠PQN is increased.
  4. The ray PR suffers partial reflection and refraction on the water-air surface. Give reason.
  5. Draw in the diagram the refracted ray for the incident ray PR and hence show the position of image of the object P by the letter P’ when seen vertically from above.  

How does a ray of light bend when it travels from rarer to denser medium


If a ray of light passes from medium I to medium II without any change of direction, what can be said about the refractive indices of these media (angle I is not 0)?


The diagram shows a point source P inside a water container. Three rays A, B, and C starting from P are shown up to the water surface. Show in the diagram the path of these rays after striking the water surface. The critical angle for the water-air pair is 48°.


Explain ‘mirage’ as an illustration of refraction.


The outer concentric shell in optic fiber is called ______.


A Rainbow is a beautiful natural phenomenon formed because of the following:


When a ray of light is refracted from one medium to another, then the wavelength changes from 6000 Å to 4000 Å. The critical angle for the interface will be ______.


The critical angle for water, which has a refractive index of 1.33, is:


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