engineering recuitment ICAR Technician 2021 Mock Test (Re-Exam) Physics Optics Refraction and Reflection
Given below are the assumptions considered while dealing with spherical refracting surfaces:
1. The object is considered only of a point lying on the principal axis of the spherical refracting surface.
2. The aperture of the spherical refracting surface is large
3. Incident ray and refracted ray make small angles with the principal axis.
Which of the above assumptions are correct
1
1) and 2) only
2
1) and 3) only
3
2) and 3) only
4
all of the above