A container is filled with fluid 1, and the apparent depth of the fluid is 9.00 cm. The container is next filled with fluid 2, and the apparent depth of this fluid is 6.86 cm. If the index of refraction of the first fluid is 1.37, what is the index of refraction of the second fluid?
a. 1.80
b. 2.41
c. 1.57
d. 1.20
e. More information is needed to find the value.
a
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The distance between the object and the eyepiece of a compound microscope is 18.0 cm. The focal length of its objective lens is 0.80 cm and the eyepiece has a focal length of 2.3 cm
The near-point distance of the person using the microscope is 25.0 cm. What is the total magnification of the microscope? A) -120 B) -184 C) -200 D) -360 E) -480
For a standing wave on a string the wavelength must equal
a. the distance between adjacent nodes. b. the distance between adjacent antinodes. c. twice the distance between adjacent nodes. d. the distance between supports.
The horizontal surface on which the objects slide is frictionless. If F = 12 N, what is the tension in string 1?
a.
35 N
b.
30 N
c.
40 N
d.
45 N
e.
25 N
Two charged bodies separated by a distance d exert an electrical force on each other. The distance d is doubled. The electrical force on each body is now 1/2 of the original force
Indicate whether the statement is true or false