If the wavelength of light in Young's two-slit experiment is decreased, which one of the following statements is true of the interference pattern?
A) The distance between the minima stays the same.
B) The distance between the maxima decreases.
C) The distance between maxima stays the same.
D) The distance between the maxima increases.
E) Impossible to tell without knowing the separation between the slits.
Question 2
A space vehicle is orbiting Earth in a circular orbit with a radius of 10,300,000 m.
What is the minimum increase in speed that is needed for the vehicle to escape Earth's gravitational field? The mass of Earth is 5.97 1024 kg and G = 6.67 x 10-11 Nm2/kg2.
A) 6220 m/s
B) 2580 m/s
C) 3110 m/s
D) 2840 m/s
E) 7440 m/s
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