Video 1 (Chapter 19): If the lens of the eye cannot adjust enough to focus on a distant object, what kind of lens should be added to the optical system?
A. Converging lens
B. Diverging lens
C. A combination of a converging and a diverging lens.
D. No lens can fix this.
Answer: B. Diverging lens
You might also like to view...
Which of the following would decrease the magnification of a compound microscope?
a. Replacing the objective lens with one of larger diameter. b. Replacing the eyepiece lens with one of shorter focal length. c. Replacing the eyepiece lens with one of smaller diameter. d. Replacing the objective lens with one of longer focal length.
_____ was the first person to produce a detailed heliocentric model of the Universe with substantial justifying arguments
A) Aristotle B) Nicolaus Copernicus C) Claudius Ptolemy D) Galileo Galilei
A block is launched up an incline plane. After going up the plane, it slides back down to its starting position. The coefficient of friction between the block and the plane is 0.3 . The speed of the block when it reaches the starting position on the trip down:
a. is the same as the launching speed. b. is less than the launching speed. c. is more than the launching speed. d. cannot be compared to the launch speed with the information given.
The laws of refraction and reflection are the same for sound as for light. The speed of sound in air is 340 m/s and in water it is 1510 m/s. If a sound wave approaches a plane water surface at an angle of incidence of 12.0°, what is the angle of refraction?