A diverging lens is thicker at the center than the edges
a. True
b. False
Indicate whether the statement is true or false
False
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A hydraulic press has its input piston depressed 20 centimeters while the output piston is raised 1 centimeter. A 1-newton input can lift a load of
A) 1 N. B) 10 N. C) 15 N. D) 20 N. E) none of the above
You are given two converging lenses to build a compound microscope. Lens A has focal length 0.50 cm and lens B has focal length of 3.0 cm. Which one of the two lenses would you use for the objective?
A) Lens A, because it has the shorter focal length. B) Lens B, because it has the longer focal length. C) It makes no difference which lens I use for the objective. D) None, because the objective should be a diverging lens.
At the highest point on the path of a projectile, its vertical acceleration
a. equals g pointing downwards b. equals g pointing upwards c. is zero d. is undetermined e. does not exist
A surprising demonstration involves dropping an egg from a third-floor window to land on a foam-rubber pad 2 in (5 cm) thick without breaking. If a 56-gram egg falls 12 m, and the foam pad stops the egg in 6.25 ms, by how much is the pad compressed?