Physics
The diagram below shows two parallel rays A (Orange) & B (Blue) incident from air, on air-glass boundary.
(a) Copy and complete the path of the rays A and B.
(b) How do the speeds of these rays differ in glass?
(c) Are the two refracted rays in glass parallel? Give a reason.
Answer
(a) Ray B (Blue) will bend more than ray A (Orange) as shown in the diagram below:
(b) In glass, speed of orange (A) light is more than that of blue light (B).
(c) The two refracted rays are not parallel in glass as orange light with more speed bends less while blue light with slow speed bends more.
Related Questions
Copy the diagram given below and complete the path of the light ray PQ, as it emerges out of the prism by marking necessary angles. The critical angle of glass is 42°.
A convex lens of focal length 10 cm is placed at a distance of 60 cm from a screen. How far from the lens should an object be placed so as to obtain a real image on the screen?
The diagram below shows the ray OP travelling through an equilateral prism of a certain material.
(a) Calculate the value of i2, if the angle of deviation is 43°.
(b) What is the ray QS called?
