In an energy level transition from the n = 2 state to the n =1 state for a hydrogen atom a photon will be ___________
Fill in the blank(s) with correct word
emitted
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Two cylindrical pipes both carry an ideal fluid (zero viscosity) in laminar flow. Pipe A has radius RA = 8 cm and flow velocity vA = 2 cm/s. Pipe B has radius RB = 4 cm and flow velocity vB = 4 cm/s. Compared to the rate of flow in pipe A, that in pipe B is
A. twice as large. B. the same. C. half as large. D. It depends on the length of the pipe
An object is placed 15 cm to the left of a double-convex lens of focal length 20 cm. Where is the image of this object located?
A) 60 cm to the right of the lens B) 60 cm to the left of the lens C) 8.6 cm to the right of the lens D) 8.6 cm to the left of the lens E) 30 cm to the left of the lens
The resistance of the light bulb is 20 ohms
Indicate whether the statement is true or false
What magnifying power is attained using a compound microscope with the following specifications: objective focal length 1.50 cm, eyepiece focal length 2.42 cm, tube length 16.0 cm? Assume a near point of 25.0 cm and that the microscope is adjusted for an image at infinity.
A. 110 B. 90.0 C. 12.0 D. 11.0 E. 8.00