Single-Slit Diffraction: When light of wavelength 450 nm falls on a single slit of width 0.30 mm, what is the angular width of the central bright region?
A. 0.086°
B. 0.13°
C. 0.17°
D. 0.26°
E. 0.35°
Answer: C
You might also like to view...
A 0.2-kg aluminum plate, initially at 20°C, slides down a 10-m long surface, inclined at a 30° angle to the horizontal. The force of kinetic friction exactly balances the component of gravity down the plane so that the plate, once started, glides down at constant velocity. If 90% of the mechanical energy of the system is absorbed by the aluminum, what is its temperature increase at the bottom
of the incline? (Specific heat for aluminum is 900 J/kg • °C.) a. 0.16°C c. 0.05°C b. 0.07°C d. 0.03°C
The Doppler effect in the spectra of quasars show very high _______________
Fill in the blank(s) with correct word
A 35.0-N crate is pulled up a 4.0-m inclined plane by a worker at constant velocity. If the plane is inclined at an angle of 37° to the horizontal and there exists a constant frictional force of 25.0 N between the crate and the surface, what is the force applied by the worker?
a. zero b. 3.95 N c. 21.1 N d. 46.1 N e. 84.2 N
In general, as a telescope's diameter increases, its angular resolution ________
Fill in the blank(s) with correct word