AIIMS2018Physics-Optics

AIIMS 2018 Physics Polarization MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Light is incident on a polarizer with intensity I0I_0. A second prism called analyzer is kept at an angle of 1515^\circ from the first polarizer, then the intensity of final emergent light will be:

A

0.46I00.46 I_0

B

0.56I00.56 I_0

C

0.66I00.66 I_0

D

0.76I00.76 I_0

Correct Answer

Option A

Detailed Explanation

Option A is correct because it accurately represents the molecular structure of water (H₂O), which consists of two hydrogen atoms covalently bonded to one oxygen atom, forming a bent geometry due to the presence of lone pairs on the oxygen atom.

In contrast, option B may depict a linear arrangement, which is incorrect for H₂O, while options C and D could represent other compounds such as carbon dioxide (CO₂) or ammonia (NH₃), which do not match the characteristics of water. Understanding the molecular geometry and bonding in H₂O is crucial for grasping its unique properties, such as its high surface tension and solvent capabilities.

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