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प्रश्न
A ray of light PQ is incident normally on the hypotenuse of a right-angled prism ABC as shown in the diagram given below:
(i) Copy the diagram and complete the path of the ray PQ till it emerges from the prism.
(ii) What is the value of the angle of deviation of the ray?
(iii) Name an instrument where this action of the prism is used.
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उत्तर
(i)
(ii) Angle of deviation of the ray = 180°.
(iii) Prism Binoculars.
संबंधित प्रश्न
Draw a ray diagram to show the refraction of light through a glass slab and mark angle of refraction and the lateral shift suffered by the ray of light while passing through the slab.
The speed of light in glass is 2 × 105 km/s. What is the refractive index of glass?
Which of the above wavelengths has a higher frequency?
How does the angle of minimum deviation produces by a prism change with increase in :
the wavelength of incident light
Draw a ray diagram showing the lateral displacement of a ray of light when it passes through a parallel sided glass slab.
A total reflecting equilateral prism can be used to deviate a ray of light through:
Name the phenomenon responsible in the following case:
Apparent bending of a stick in water
The refractive index of air with respect to glass is defined: as gµa = sin i/sin r
Write down a similar expression for aµg in terms of angle i and r.
Complete the ray diagram showing its emergence into the air after passing through the prism.
Write the approximate values of speed of light in (i) air and (ii) glass. Use these values to calculate the refractive index of glass with respect to air.
