Q- A simple AC Circuit contains R=70.0 Ohm and V = Vmax sin ωt
a) If Vt = 0.250 Vmax for the first time at t = 0.0100 s, what is the angular frequency ω of the source?
b) What is the next value of t for which Vt = 0.250 Vmax?
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. September 2016
Standing waves: Resonance
Q- A shower stall measures 86.0 cm x 86.0 cm x 210cm long. When you sing in the shower, which frequencies will sound the richest (because of resonance)? Assume the stall acts as a pipe closed on both ends, with nodes at opposite sides. Assume also that the voices of various singers range from 130 Hz…
Ray Optics: Hyperopia
Q- The minimum focal length of the eye lens is f = 2.8 cm and the distance between the lens and retina is 3.00 cm.
a) At what distance from the retina the image of an object at 25 cm from the eye lens is formed?
b) What type of lens is required to make the image of the object on retina?
c) What i…
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