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A slit 0.240mm wide is illuminated by parallel light rays with a wavelength 540nm . The diffraction pattern is observed on a screen that is 2.50m from the slit. The intensity at the center of the central maximum (? = 0?) is 6.70×10?6W/m2 .
What is the distance on the screen from the center of the central maximum to the first minimum?
What is the intensity at a point on the screen midway between the center of the central maximum and the first minimum?
A loudspeaker at a rock concert generates 10-2 W/m2 at 18 m at a frequency of 1 kHz. Suppose that speaker spreads its energy uniformly in all directions. What is the intensity level at 18.00m.
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The electromagnet produces a field that is uniform throughout the volume between the faces. Describe the electric field that results in the region between the poles
A rod 50 cm long and 1.0 cm in radius carries a 2.0 microC charge distributed uniformly over its length. Find the approximate magnitude of the electric field
Two lenses that are L = 42 cm apart are used to form an image, as shown in figure. Find the distance from lens and magnification of the image.
An uncharged spherical conducting shell surrounds a point charge - q at its centre. Then a charge +3q is placed on the outside surface of shell.
The electric field has been measured to be horizontal and to the right everywhere on the closed box. All over the left side of the box E1 = 120 V/m, and all over the right, slanting, side of the box E2 = 250 V/m. On the top the average field is E3..
A water-skier is moving at a speed of 13.1 m/s. When she skis in the same direction as a traveling wave, Determine the wavelength of the wave
The distance from the thrower's axis of rotation to the hammer head is 1.2 m. The hammer has a mass of 7 kg. What is the linear (tangential) velocity of the hammer head
A bullet of mass mb = 16 g is fired with a speed of 260 m/s at a target that is a sheet of metal (mass mt = 410 g). what is the angular velocity of the target plus bullet just after the bullet hits
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW, Find the peak electric field strength
You want a screen to be illuminated with an intensity of 662 mW/m2. The screen is 10.05 m away from the light source, What is the power of the light source
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