A simple magnifying glass has a focal length of 6.0 cm. An object is placed 4.0 cm from it. Sketch a ray diagram and give the characteristics of the image
Virtual, upright, and enlarged
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Rank the following 3 items from nearest to farthest. Hint: the Orion Nebula is a cloud of gas in which young stars are being born within the Milky Way, about 1,500 light-years away
A) star in the center of the Milky Way, Alpha Centauri, Orion Nebula B) Alpha Centauri, Orion Nebula, star in the center of the Milky Way C) star in the center of the Milky Way, Orion Nebula, Alpha Centauri
What is the rank of soil sizes from largest to smallest?
What will be an ideal response?
Rays of light traveling through different media hit the boundary between the media and the air. The angle of incidence is the same in each case. Which medium has the largest index of refraction?
A. A B. B C. C D. D
Why do neutrons make better nuclear probes than alpha particles?
a. Neutrons are more massive than alpha particles. b. A neutron has less mass than an alpha particle. c. Neutrons are not subject to the strong force. d. Neutrons have about the same mass as a proton. e. Neutrons have no electrical charge.