Physics Relativity Level: University
UnitThe light-second is a unit of distance: 1 light - second is the distance that light travels in one second. (a) Find the conversion between light seconds a meters 1 light second= ? m . (b) What is the speed of light units of light second per second.
Physics Misc Topic Level: University
Displacement CurrentA 1010nF capacitor with circle parallel plates 1.28 cm in diameter is accumulating charge at the rate of 23.1 mC/s at some instant in time. What will be the induced magnetic field strength 12.1 cm radially outward from the center of the plates? and what will be the value of the field strength after the capacitor is fully charged?
Physics Ray Optics Level: University
InterferenceA beam containing light of wavelengths lambda1 and lambda2 is incident on a set of parallel slits. In the interference payyern the fourth bright line of the lambda1 light occurs at the same position as the sixth bright line of the lambda2 light. If lambda1 is know to be 554 nm What is the value of lambda2.
Physics Ray Optics Level: University
InterferenceA beam of light of wavelength 562 nm passes through two closely spaced glass plates as shown in the figure below. For what minimum nonzero value of the plate separation d will the transmitted light be bright?
Question Diagram
Physics Ray Optics Level: University
InterferenceLight of wavelength 489 nm falls on two slits spaced 0.287 mm apart. What is the required distance from the slits toascreenif the spacing between thefirstand second dark fringes is to be 3.24 mm?
Physics Ray Optics Level: University
DiffractionA very thin sheet of plastic (n = 1.55) covers one slit of a double - slit apparatus illuminated by 615 nm light. The center point on the screen, instead of being a maximum is dark. What is the ( minimum) thickness of the plastic?
Physics Ray Optics Level: University
DiffractionHow wide is the central diffraction peak on a screen 2.50 m behind a 0.0315 mm wide slit illuminated by 593nm light?
Physics Ray Optics Level: University
DiffractionMonochromatic light falls on two very narrow slits 0.0356 mm apart. Successive friges on a screen 5.22m away are 5.68 cm apart near the center of the pattern. What is the wavelength of the light?
Physics Misc Topic Level: University
InterfrenceA person driving at V 16.6 m/s crosses the line connecting two radio transmitters at right angles as shown in the figure below. The transmitters emit identical signals in phase with each other which the driver receives on the car radio. When the car is at point A L1 = 440 m and L2= 141 m away from the transmitters the radio picks up a maximum net signal. What is the longest possible wavelength of the radio waves?
Question Diagram
Physics Misc Topic Level: University
Coulom's Law and Field IntensityWhat is the magniyude and direction of the electric force on a -1.2 uC charge at a point where the electric field is 2500N/C and is directed alond the +y axis?
(a) 0.15 N -y direction
(b) 0.15 N +y direction
(c) 0.0030 N -y direction
(d) 0.0030 N +y direction
(e) 4.3 N +x direction
Physics Waves And Oscillations Level: University
Transfer of ChargeTwo identical conducting spheres carry chagres of +5.0 uC and -1.0 uC respectively. The centers of the spheres are initially separated by a distance L. The two spheres are brought together so that they are in contact. The spheres are then returned to their original separation. What is the ratio of the magnitude of the force on either charge after the spheres are touched to the before they were touched?
(a) 1/1
(b) 4/5
(c) 9/5
(d)5/1
(e) 4/9
Physics Electrostatics Level: University
Coulomb's LawA charge Q exarts a 12 N force on another charge q. If the distance between the charge is doubled what is the magnitude of the force exerted on Q by q?
(a) 3 N
(b) 6 N
(c) 24 N
(d) 36 N
(e) 48 N
Physics Waves And Oscillations Level: University
Superposition of WaveVibrations with frequency 600 Hz are established on a 1.33-m length of string that is clamped at both ends. The speed of the waves on the string is 499 m/s. How many antinodes are contained in the resulting standing wave pattern?
(a) 2
(b) 3
(c) 4
(d) 5
(e) 6
Physics Waves And Oscillations Level: University
BeatsTwo timpani ( tunable drums) are played at the same time. One is correctly tuned so that when it is struck sound is produced that has a wavelength of 2.20 m . The second produces sound with a wavelength of 2.08m. If the speed of sound is 343m/s What beat frequency is heard?
(a) 7 beats/s
(b) 9 beats/s
(c) 11beats/s
(d) 13 beats/s
(e) 15 beats/s
Physics Electrostatics Level: University
Coulomb's LawA -4.0 uC charge is located 0.30 m to left of a +6.0 uC charge. What is the magnitude and direction of the electrostatic force on the positive charge?
(a) 2.4 N to the right
(b) 2.4 N to the left
(c) 4.8 N to the right
(d)4.8 N to the left
(e) 7.2 N to the right
