An experiment is set up to test the angular resolution of an optical device when red light (wavelength r ) shines on an aperture of diameter D . Which aperture diameter gives the best resolution? D=(1/2)r D=r D=2r

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0