In a double-slit experiment using light of wavelength 486 nm, the slit spacing is 0.600 mm and the screen is 2.00 m from the slits. Find the distance along the screen between adjacent bright fringes
1.62 mm
Physics & Space Science
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Which of the following is true of quasars?
A) Quasar eruptions became less common as galaxies became more stable. B) Quasars did not exist until about five billion years ago. C) Quasars have comparatively smaller look-back time than most galaxies. D) Quasars eruptions were not common when galaxies were actively forming and colliding.
Physics & Space Science
When four hydrogen are fused to make one helium nuclei, a small amount of matter is converted into what?
a. photons b. other matter c. energy d. gamma rays, neutrinos, and positrons
Physics & Space Science
To turn 50 grams of boiling water to steam requires
A) 50 calories. B) 500 calories C) 540 calories. D) more than 540 calories. E) none of the above
Physics & Space Science
Symbol question
The Lewis symbol 
would be
Physics & Space Science