Answer the following statement(s) true (T) or false (F)
If we shine white light through two slits onto a distant screen, we will see a clear interference pattern.
FALSE
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Molecular Speeds: An oxygen molecule, O2, falls in a vacuum. From what height must it fall so that its translational kinetic energy at the bottom of its fall equals the average translational kinetic energy of an oxygen molecule at 920 K? The mass of one O2 molecule is 5.312 × 10-26 kg, and the Boltzmann constant is 1.38 × 10-23 J/K. Neglect air resistance and assume that g remains constant at 9.8 m/s2 throughout the fall of the molecule.
A. 49 km B. 12 km C. 24 km D. 37 km E. 5.2 km
Consider the ratio of the surface area of a sphere to its volume. What happens to this ratio if the diameter of the sphere increases by a factor of 3?
A. Decreases by a factor of 9 B. Increases by a factor of 3 C. Decreases by a factor of 3 D. Increases by a factor of 9 E. Stays the same
The angle of incidence can vary between zero and
A) 1 radian. B) ?/2 radians. C) ? radians. D) 2? radians. E) 3?/2 radians.
Light of wavelength 519 nm passes through two slits. In the interference pattern on a screen 4.6 m away, adjacent bright fringes are separated by 5.2 mm in the general vicinity of the center of the pattern. What is the separation of the two slits?
What will be an ideal response?