For what slit separation will no 1st order double-slit-fringe appear for 550. nm light?
What will be an ideal response?
d less than 550. nm
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The nuclear reactions in a star's core remain under control so long as
a. luminosity depends on mass. b. pressure depends on temperature. c. density depends on mass. d. weight depends on temperature. e. temperature depends on mass.
Two identical objects A and B fall from rest from different heights to the ground and feel no appreciable air resistance. If object B takes TWICE as long as object A to reach the ground, what is the ratio of the heights from which A and B fell?
A) hA/hB = 1/ B) hA/hB = 1/2 C) hA/hB = 1/4 D) hA/hB = 1/8
The longest wavelength of a photon that can be emitted by a hydrogen atom, for which the initial state is n = 3, is closest to which one of the following values? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A) 625 nm B) 600 nm C) 550 nm D) 658 nm E) 575 nm
300-nm light has a lower frequency than 500-nm light
a. True b. False Indicate whether the statement is true or false