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Class XII Physics Ray Optics 2
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Question 1
A glass slab of thickness 4 cm contains the same number of waves as 5 cm of water. When both are traversed by the same monochromatic light. If the refractive index of water is (4/3). What is that of glass:
Question 2
A cylindrical vessel of diameter 12 cm contains 800π cm3 of water. A cylindrical glass piece of diameter 8.0 cm and height 8.0 cm is placed in the vessel. If the bottom of the vessel under the glass piece is seen by the paraxial rays (see figure), locate its image from bottom. The index of refraction of glass is 1.50 and that of water is 1.33.
Question 3
Light of wavelength 4500Ao in air is incident on a plane boundary between air and another Moderate at an angle 30o with the plane of boundary. As it enters from air into the other Moderate it deviates by 15o towards normal. Find the wavelength of given light in the Moderate
Question 4
A ray of light is incident from a denser Moderate on the surface of separation of a rarer Moderate. The reflected and refracted rays are inclined to each other at 90 º. The angles of reflection and refraction are r and r′ respectively. The critical angle is
Question 5
Figure shows an irregular block of material of refractive index 
. A ray of light strikes the face AB at an angle of 45 ° with normal. Where will the final image for Moderate (AB = 3m)
. A ray of light strikes the face AB at an angle of 45 ° with normal. Where will the final image for Moderate (AB = 3m) Question 6
The minimum distance between an object and its real image formed by a thin convex lens of focal length 30 cm is
Question 7
A green light is incident from the water to the air - water interface at the critical angle (θ). Select the correct statement
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Nov 4NEET & AIIMS
