A 17-mm-wide diffraction grating has rulings of 530 lines per millimeter. White light is incident normally on the grating. What is the longest wavelength that forms an intensity maximum in the fifth order?
A) 377 nm
B) 352 nm
C) 402 nm
D) 427 nm
E) 452 nm
A
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Harry Potter points his wand at the sun and cries “Spotificus!” Within 8 minutes, observers all over the earth see a large string of sunspots form on the sun. Did Harry create the sunspots?
A. Yes. Harry is a very powerful wizard. B. Yes, if magical effects travel at the speed of light. C. No. This is not physically possible, even with magic.
A charged particle (q = ?8.0 mC), which moves in a region where the only force acting on the particle is an electric force, is released from rest at point A. At point B the kinetic energy of the particle is equal to 4.8 J. What is the electric potential difference VB?VA?
A. ?0.60 kV B. +0.60 kV C. +0.80 kV D. ?0.80 kV E. +0.48 kV
When a hydraulic press is properly used it is capable of multiplying force input
A) true B) false C) true only in special cases, energy as well
What does it mean for something to be "quantized?"
a. It can have only certain discrete values. b. It can have only integer values. c. It can have values only between certain limits. d. none of the above