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प्रश्न
Draw a diagram, properly labelled, to illustrate the use of a total reflecting prism (a right-angled isosceles prism) to turn a ray of light through 180°. Name an instrument in which this device is used.
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उत्तर
The diagram is shown below. This device is used in binoculars.
संबंधित प्रश्न
i) Observe the given figure and answer the following questions.
a) Identify and write the natural process shown in the figure.
b) List the phenomena which are observe in this process.
c) Redraw the diagram and show above phenomena in it.
Express the refractive index μ of a medium in terms of the angle of incidence i in air and the angle of refraction r in a denser medium.
Observe the given figure and write appropriate phenomenon of light in the box.
Which one of the following is NOT the correct formula for refractive index of glass w.r.t. air (aμg) (i = angle of incidence, r = angle of refraction)
The entire light is reflected back into the denser medium is called ______.
Which of the following statements about total internal reflection is true?
The angle of incidence at which the angle of refraction is Q£ is called the critical angle.
The phenomena involved in the reflection of radiowaves by ionosphere is similar to ______.
State the condition under which total internal reflection occurs. Give the mathematical expression for total internal reflection.
Name any two phenomena which take place in the formation of a rainbow.
