Advertisements
Advertisements
प्रश्न
Which colour of light has a higher critical angle? Red light or green light.
Advertisements
उत्तर
The critical angle for 'Red' colour is higher than that of green light.
APPEARS IN
संबंधित प्रश्न
Angle of deviation is the angle which the ______ ray makes with the direction of ______ray.
What do you understand by the deviation produced by a prism? Why is it caused?
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?
How does a ray of light bend when it travels from rarer to denser medium
What is meant by the term ‘critical angle’?
Choose the correct option.
Angles of deviation for extreme colours are given for different prisms. Select the one having maximum dispersive power of its material.
The twinkling effect of star light is due to ______.
What is the phenomenon used in optical fiber? Explain.
The angle made by incident ray of light with normal of the reflecting surface is called ______.
