A single slit, 1,400 nm wide, forms a diffraction pattern when illuminated by monochromatic light of 490-nm wavelength. What is the largest angle from the central maximum at which the intensity of the light is zero?
A) 44°
B) 41°
C) 38°
D) 35°
E) 32°
A
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Which one of the following choices is not a possible way to produce a magnetic field?
a) Set up a current in a long, straight wire. b) Uniformly distribute charges over the surface of a conductor. c) Make an object out of materials that have an intrinsic magnetic field. d) Pass a current through a coil of wire.
From the center out, the correct order of the parts of the Sun is
A. radiative zone, core, chromosphere, convection zone, photosphere, corona. B. core, convection zone, photosphere, chromosphere, corona, radiative zone. C. core, radiative zone, convection zone, photosphere, chromosphere, corona. D. core, convection zone, radiative zone, photosphere, chromosphere, corona.
A race car starts from rest on a circular track of radius 400 m. Its speed increases at the constant rate of 0.500 m/s2. At the point where the magnitudes of the radial and tangential accelerations are equal, determine (a) the speed of the race car, and (b) the elapsed time.
What will be an ideal response?
An object placed 19.0 cm from a concave mirror produces a real image 12.7 cm from the mirror. If the object is now moved to a new position 27.0 cm from the mirror, where is the new image located as measured from the mirror?
a. 7.61 cm b. 10.6 cm c. 5.94 cm d. 18.0 cm e. 20.7 cm