Blue light has a longer wavelength than red light
a. True
b. False
Indicate whether the statement is true or false
False
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The eyepiece of a compound microscope has a focal length of 2.50 cm and the objective has a focal length of 1.60 cm. The two lenses are separated by 14.0 cm. The microscope is used by a person with normal eyes (near point at 25 cm)
What is the angular magnification of the microscope? A) 72 B) 88 C) 180 D) 219 E) 115
The chromosphere is often marked by eruptions on the solar surface called ____
a. solar flares b. prominences c. solar nodes d. diamond rings e. coronal mass ejections
You look at yourself in a plane mirror. If you move away from the mirror and look at yourself again, you now see
a. more of yourself. b. less of yourself. c. the same amount of yourself. d. a larger image of yourself. e. a smaller image of yourself.
The circuit below shows three resistors in parallel. R3 > R2 > R1. The resistors are all made of the same wire with the same diameter but have different lengths. Rank the magnitudes of the electric fields in the resistors from least to greatest
a.
E3 < E2 < E1.
b.
E2 < E1 = E3.
c.
E1 = E2 = E3.
d.
E1 = E3 < E2.
e.
E1 < E2 < E3.