Two converging lenses, the first with focal length 25 cm and the second with focal length 20 cm, are separated by 30 cm. A 4.0 cm tall object is placed 50 cm in front of the first lens. What is the height of the final image?
A. 4.0 cm
B. 2.0 cm
C. 8.0 cm
D. 9.3 cm
E. 1.0 cm
B. 2.0 cm
Physics & Space Science
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The two elements a one-solar-mass star uses over the course of its entire evolution are _______________ and _____________
Fill in the blank(s) with correct word
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A series circuit containing an inductor and a resistor is driven by a 120-V 60-Hz voltage source. The resistance is equal to 20.0 ? and the inductance is 160 mH. What is the phase angle between the current the the applied voltage?
What will be an ideal response?
Physics & Space Science