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प्रश्न
A total reflecting equilateral prism can be used to deviate a ray of light through:
विकल्प
30°
60°
75°
90°
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उत्तर
60°
Hint:
संबंधित प्रश्न
Four students P, Q, R and S traced the path of a ray of light passing through a glass slab for an angle of incidence 40° and measured the angle of refraction. The values as measured them were 18°; 22°; 25° and 30° respectively. The student who has performed the experiment methodically is
(A) P
(B) Q
(C) R
(D) S
Draw a ray diagram to show the refraction of a monochromatic ray through a prism when it suffers minimum deviation.
Write the relation between the angle of incidence and the angle of refraction for a medium.
In fig 4.18, name the ray which represents the correct path of light while emerging out through a glass block.
Fig shows a lens as a combination of a glass block and two prisms.
(i) Name the lens formed by the combination.
(ii) What is the line XX' called?
(iii) Complete the path of the incident ray PQ after passing through the lens.
(iv) The final emergent ray either meets XX' at a point or appears to come from a point on XX'. Label it as F, What is this point called?
Name the phenomenon responsible in the following case:
Apparent bending of a stick in water
What is the refractive index of vacuum
What do you understand by the deviation produced by a prism?
Draw a diagram of a prism and label:
(i) the base,
(ii) the refracting surfaces,
(iii) the refracting edge,
(iv) the refracting angle in it.
The diagram below shows two parallel rays A (Orange) & B (Blue) incident from air, on air-glass boundary.
- Copy and complete the path of the rays A and B.
- How do the speeds of these rays differ in glass?
- Are the two refracted rays in glass parallel? Give a reason.
