The constellation shaped like a big square (the "great square of . . . ") is
A) Cassiopeia.
B) Pegasus.
C) Canis Major.
D) Taurus.
E) Andromeda.
B
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When an electron moves from a lower to a higher energy state, a photon is ________
Fill in the blank(s) with correct word
Electric potential is the ratio of electric energy to the amount of electric
A) current. B) resistance. C) charge. D) voltage. E) none of the above
A glass plate that is 2.5 cm long is separated from another glass plate at one end by a strand of someone's hair that is 0.010 mm in diameter. How far apart are the adjacent interference bands when viewed with light of wavelength 600 nm?
What will be an ideal response?
A Young's double-slit apparatus is set up where a screen is positioned 0.80 m from the double slits. If the distance between alternating bright fringes is 0.83 cm, and the light source has a wavelength of 580 nm, what is the separation of the double slits? (1 nm = 10-9 m)
a. 6.0 × 10^-5 m c. 4.9 × 10^-5 m b. 2.8 × 10^-5 m d. 5.6 × 10^-5 m