A Glass Plate Having an Index of Refraction Is 1

question 27

Multiple Choice

A glass plate having an index of refraction is 1.66 is immersed in a certain alcohol.The surface of the glass is inclined at an angle of 44° with the vertical.When a horizontal ray in the glass strikes the interface,you observe that it is at the critical angle.What is the index of refraction of the alcohol?

• A)1.15
• B)1.13
• C)1.11
• D)1.09
• E)1.17

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Definitions:

Lens

In the eye, a transparent structure located behind the iris that focuses light onto the retina to produce clear images.

Subliminal Perception

The processing of information by the subconscious mind, which occurs without conscious awareness.

Public Concern

Issues that generate a significant level of interest, worry, or debate among the general public, often influencing social attitudes, policy making, and media coverage.

Sensory Adaptation

A change over time in the responsiveness of the sensory system to a constant stimulus, often leading to a decrease in sensitivity to that stimulus.