हिंदी

Make the Correct Choices for Each of the Following : Total Internal Reflection Takes Place When

Advertisements
Advertisements

प्रश्न

Make the correct choices for each of the following : 

Total Internal reflection takes place when 

(where ∠i = angle of incidence,  ∠r = angle of refraction, ∠C = critical angle)

विकल्प

  • Light is going from glass to air and  ∠I < ∠C

  • Light is going from air to glss and ∠i < ∠C

  • Light is going from glass to air and  ∠i > ∠C

  • Light is going from air to glss and ∠i > ∠C

  • Light is going from glass to air and  ∠i = ∠r

MCQ
Advertisements

उत्तर

Light is going from glass to air and  ∠i > ∠C

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Light - Exercise 4 [पृष्ठ ११५]

APPEARS IN

फ्रैंक Physics Part 2 [English] Class 10 ICSE
अध्याय 2 Light
Exercise 4 | Q 2.2 | पृष्ठ ११५

संबंधित प्रश्न

What is total internal reflection? 


Solve the previous problem if the paperweight is inverted at its place so that the spherical surface touches the paper.


Define the terms critical angle and total internal reflection. State two conditions necessary for total internal reflection to occur. Write down the relation for the critical angle in terms of refractive index.

State one factor on which a critical angle for a given pair of media depends. The critical angle for the glass-air interface is 45° for the yellow light. Will it be equal to, less than or greater than 45° for (i) red light, (ii) blue light?


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°.


Choose the correct option.

Select the WRONG statement.


The entire light is reflected back into the denser medium is called ______.


A bundle of glass threads, each of which is capable of transmitting messages using light waves is called ______.


An endoscope uses optic fiber to transmit high resolution images of internal organs without loss of information. The principle of light that is used by the optic fiber is based on ______.


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 ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×