What are the 2 types of reflection discussed in chapter 18?
A. Diffuse and specular
B. Point and specular
C. Diffuse and scattered
D. Scattered and specular
Ans: A. Diffuse and specular
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The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.5 cm, respectively. An object is placed 0.3 cm from the objective. The image of this object is viewed with the eyepiece adjusted for minimum eyestrain
What is the distance between the objective and the eyepiece? A) 9.85 cm B) 10.1 cm C) 10.4 cm D) 11.2 cm E) 11.5 cm
Refer to the figure above. Assume the switch in the primary has been closed for a few minutes. Then there is a current in the
1) primary, but not the secondary. 2) secondary, but not the primary. 3) primary and secondary. 4) neither the primary nor the secondary. When the switch is opened suddenly, current in the primary 5) decreases, while current builds up in the secondary. 6) increases, while current decreases in the secondary.
Which of the following is not a suitable application for a noble metal?
(a) Large parts in sea water, such as a ship hull (b) Catalytic converters (c) Human body implants (d) Satellite parts
A galactic bar forms from a gravitational disturbance and is a temporary feature of galaxies.
Answer the following statement true (T) or false (F)