The figure below shows a single lens with two rays of white light incident on it from the left. Sketch the paths of the blue, yellow, and red components of each of these rays to the point where the light from the upper and lower rays would meet
What will be an ideal response?
The blue rays should come to a focus closest to the right side of the lens, the red rays should come to a focus furthest from the right side of the lens, and the focus of the yellow rays should be between the red and blue focal points.
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The basic function of a carburetor of an automobile is to atomize the gasoline and mix it with air to promote rapid combustion. As an example, assume that 30 cm3 of gasoline is atomized into N spherical droplets, each with a radius of 2.0 × 10?5 m. What is the total surface area of these N spherical droplets?
What will be an ideal response?
Increasing the voltage across the two plates of a capacitor will produce what effect on the capacitor?
a. increase charge b. decrease charge c. increase capacitance d. decrease capacitance
Vision Problems: A nearsighted man wears contact lenses of -3.00 diopters. With these lenses, his corrected near point is 25.0 cm. What is his uncorrected near point?
Fill in the blank(s) with the appropriate word(s).
What is the origin of the jovian moons?
A) They all formed with the planet. B) They were main belt asteroids, captured by Jupiter's strong gravity. C) They are Trojan asteroids, orbiting 60 degrees ahead or behind Jupiter. D) The four Galilean moons formed with Jupiter, most others were later captures. E) They were ripped from the planet's interior in an early cataclysmic event.