When you look at a single-slit diffraction pattern produced on a screen by light of a single wavelength, you see a bright central maximum and a number of maxima on either side, their intensity decreasing with distance from the central maximum. If the width of the slit is increased,
a. the pattern shrinks in size (central maximum less wide; other maxima in closer to it).
b. the pattern increases in size (central maximum wider; other maxima farther from it).
c. it does not affect the size of the pattern.
d. the width of the central maximum increases, but the other maxima do not change in position or width.
e. the width of the central maximum decreases, but the other maxima do not change in position or width.
a
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A box is sliding down an incline tilted at a 12.0° angle above horizontal. The box is initially sliding down the incline at a speed of 1.50 m/s. The coefficient of kinetic friction between the box and the incline is 0.340
How far does the box slide down the incline before coming to rest? A) 0.920 m B) 2.33 m C) 1.78 m D) 0.720 m E) The box does not stop. It accelerates down the plane.
An object completely submerged in water must either rise or fall
Indicate whether the statement is true or false
An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 20 N. The radius of the planet is 6.0 × 10^6 m. What is the mass of Planet X? (G = 6.67 × 10^?11 N / m2/kg2)
a. 1.80E+18 kg b. 5.40E+24 kg c. 2.16E+25 kg d. 1.80E+18 kg
Color blindness is caused by
A) damage to the retina. B) cataracts. C) a missing cone-type. D) a missing rod-type. E) lack of melanin.