RE-NEET Physics Ray Optics Class 12 Questions

Consider three media P, Q and R with refractive indices 1, 1.25, and 1.5, respectively. The medium Q having a thickness of 5 cm is placed between extended media P and R as shown in the figure. An object O is placed at the center of medium Q. If viewed from medium P near the normal direction, the apparent depth of O is h₁. For similar observation from medium R, the apparent depth is h₂. The value of |h₁−h₂|, in cm, is:

The lens combination as shown in the figure, consists of two lenses, L₁ and L₂, of the focal lengths +10 cm and^{-10} cm, respectively. The position of the image formed is:

Which of the following measurements require 'index correction'?

Given below are two statements: Statement I: Image formation needs regular reflection and/or refraction. Statement II: The variety in colour of objects we see around us is due to the constituent colours of the light incident on them. In the light of the above statements, choose the most appropriate answer from the options given below:

A beam of unpolarized light of intensity I₀ is passed through a polaroid A, then through another polaroid B, oriented at 60° and finally through another polaroid C, oriented at 45° relative to B as shown. The intensity of emergent light is: