A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student’s desk. If the image of the beetle is twice as large as the beetle itself, where is the image formed relative to the lens?
A. 4.5 cm
B. 8.3 cm
C. 5.0 cm
D. 3.6 cm
E. 5.6 cm
B. 8.3 cm
Physics & Space Science
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A far-sighted student has a near point of 1.0 m. Calculate the focal length (in cm) of the glasses needed so the near point will be normal (25 cm).
A. 72 B. 25 C. 33 D. 100 E. ?33
Physics & Space Science
Which of the following is Jupiter's largest moon?
a. Io b. Europa c. Ganymede d. Callisto
Physics & Space Science
Which of the following material phases cannot form a solution?
A) solids B) liquids C) gases D) All of the above can form solutions. E) None of the above can form solutions.
Physics & Space Science
In Einstein's General Theory of Relativity, higher dimensions beyond the three that we can comprehend are called
A) hidden space B) hyperspace C) excited space D) extra space
Physics & Space Science