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प्रश्न
State the conditions required for total internal reflection of light to take place.
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उत्तर
- Light must travel from a denser medium to a rarer medium.
- The angle of incidence must be greater than the critical angle for the pair of media.
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संबंधित प्रश्न
Which colour of light has a higher critical angle? Red light or green light.
State two conditions necessary for total internal reflection to occur.
One day Chetan’s mother developed a severe stomach ache all of a sudden. She was rushed to the doctor who suggested for an immediate endoscopy test and gave an estimate of expenditure for the same. Chetan immediately contacted his class teacher and shared the information with her. The class teacher arranged for the money and rushed to the hospital. On realizing that Chetan belonged to a below average income group family, even the doctor offered concession for the test fee. The test was conducted successfully.
Answer the following questions based on the above information:
(a) Which principle in optics is made use of in endoscopy?
(b) Briefly explain the values reflected in the action taken by the teacher.
(c) In what way do you appreciate the response of the doctor on the given situation?
Images formed by totally reflecting prisms are brighter than the image formed by ordinary reflected light, why?
Optical fibre communication uses the principle of ______.
The entire light is reflected back into the denser medium is called ______.
Which of the following statements about total internal reflection is true?
What is the phenomenon used in optical fiber? Explain.
Name any two phenomena which take place in the formation of a rainbow.
The critical angle for crown glass, which has a refractive index of 1.52, is:
