The focal lengths of the objective and eyepiece in a compound microscope are 0.50 cm and 2.00 cm, respectively. An object is placed at a distance of 0.52 cm from the objective
If the final image seen by the eye is at a distance of 25 cm from it, what is the magnification? A) -125
B) -100
C) -225
D) -325
E) -425
D
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The increase in specimen strength with plastic strain is _____________ hardening.
Fill in the blank(s) with the appropriate word(s).
Molecular clouds are mapped using CO instead of hydrogen because CO is much more abundant than hydrogen in molecular clouds
Indicate whether the statement is true or false
Venus may have been more Earth-like in the past because
A) it was rotating more rapidly B) the Sun was dimmer, putting out less solar radiation C) it was not as close to the Sun D) its atmosphere was thinner
If the polarizing angle (the angle at which reflected light is completely plane polarized) of a flat piece of sapphire is 60.5°, what is its index of refraction?
a. 1.97 b. 1.77 c. 1.59 d. 2.36 e. 1.82