The drawing shows three materials, a, b, and c. a ray of light strikes the a−b interface at an angle that just barely exceeds its critical angle of 40.0°. the reflected ray then strikes the a−c interface at an angle of incidence that just barely exceeds its critical angle (which is not 40.0°). the index of refraction of material a is na = 1.71. find the indices of refraction for the two other materials. nb = ?
nc = ?

What are segments of dna that code for a particular trait. a combination of dna and proteins make up what

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.