An object is placed 10 cm from a convex lens of focal length 20 cm. What is the lateral magnification of the object?
A) 2.0 B) 2.5 C) 0.50 D) 1.0 E) 1.5
A
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Answer the following statement true (T) or false (F)
In science, an unexpected change in a series of measurements is referred to as
A) a deviation B) bias C) an error D) an uncertainty
RC Circuits: A resistor, an uncharged capacitor, a dc voltage source, and an open switch are all connected in series. The switch is closed at time t = 0 s. Which one of the following is a correct statement about this circuit?
A. The charge on the capacitor after four time constants is about 98% of the maximum value. B. The charge on the capacitor after one time constant is 50% of its maximum value. C. The charge on the capacitor after one time constant is 1/e of its maximum value. D. The voltage on the capacitor after one time constant is 1/e of the maximum value. E. The voltage on this capacitor after one time constant is 100% of its maximum value.
The Balmer lines of hydrogen involve electron transitions from the ground state to higher levels
Indicate whether the statement is true or false