मराठी

What is Meant by the 'Angle of Incidence' and the 'Angle of Refraction' for a Ray of Light? - Science

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प्रश्न

What is meant by the 'angle of incidence' and the 'angle of refraction' for a ray of light?

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उत्तर

Angle of incidence:
The angle between the incident ray and the normal is called angle of incidence.
Angle of refraction:
The angle between the refracted ray and the normal is called angle of refraction. 

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पाठ 5: Refraction of Light - Exercise 1 [पृष्ठ २२०]

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लखमीर सिंह Physics (Science) [English] Class 10
पाठ 5 Refraction of Light
Exercise 1 | Q 24.1 | पृष्ठ २२०

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

  Column I Column II Column III
1 Dispersion Long-sightedness Twinkling of stars
2 Refraction Splitting of white light into component colours Convex lens
3 Hypermetropia Change in the direction of the ray of light due to change in medium Spectrum of seven colours

State and explain the laws of reflection of light at a plane surface (like a plane mirror), With the help of a labelled ray-diagram. Mark the angles of 'incidence' and 'reflection' clearly on the diagram. If the angle of reflection is 47.5°, what will be the angle of incidence?


A ray of light strikes a plane mirror PQ at an angle of incidence of 30°, is reflected from the plane mirror and then strikes a second plane mirror QR placed at right angles to the first mirror. The angle of reflection at the second mirror is ______.


A ray of light passes from air into a block of glass. Does it bend towards the normal or away from it?


When a light ray passes from air into glass, what happens to its speed? Draw a diagram to show which way the ray of light bends. 


With the help of a labelled diagram, explain why a tank full of water appears less deep than it actually is. 


Water is optically denser than glass.


When a ray of light travels from water to air, it bends ............. the normal.


List in proper sequence the steps of the experiment for determining the approximate focal length of a given concave mirror by obtaining the image of a distant object.


The laws of reflection hold true for ______.


The incident rays and refracting rays are on opposite sides of the normal.


The phenomenon of light passing through the object is called ______.


How does the light travel?


Light bends as it passes from one medium to another. What is this phenomenon called?


A ray of light traveling in medium 1 strikes and travels into another transparent medium 2. If the speed of light is greater in medium 1, the ray will ______.


A water tank appears shallower when it is viewed from the top due to refraction. 


Under what circumstances there won’t be any refraction of light when it enters from one medium to another?


Why a pencil partly immersed in water appears to be bent at the water surface.


How do twinkling stars occur? (or) what is the cause of the twinkling of stars?


A ray of light starting from diamond is incident on the interface separating diamond and water. Draw a labelled ray diagram to show. the refraction of light in this case.


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