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प्रश्न
Small air bubbles rising up a fish tank appear silvery when viewed from some particular angle is due to the ______.
विकल्प
reflection
refraction
dispersion
total internal reflection
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उत्तर
Small air bubbles rising up a fish tank appear silvery when viewed from some particular angle is due to the total internal reflection.
Explanation:
If the angle of incidence is larger than the critical angle, a light beam that is travelling from an optically denser to a rarer medium reflects back into the denser medium.
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संबंधित प्रश्न
Which colour of light has a higher critical angle? Red light or green light.
Angle of deviation is the angle which the ______ ray makes with the direction of ______ray.
Total internal reflection occurs only when a ray of light passes from a ______ medium to a ______ medium.
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A ray of light is incident on a glass surface at an angle of 50° with the corresponding angle of refraction 30°. Find the value of the R.I. of glass.
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.
Answer the following question.
Define the critical angle of incidence and obtain an expression for it.
The entire light is reflected back into the denser medium is called ______.
What are the examples of total internal reflection in nature?
