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Point Source The light from the laser travels in one direction. Light from a small bulb...
3. In this diagram, the paths taken by light striking point B on the screen are...
3. In this diagram, the paths taken by light striking point B on the screen are shown. Laser beam B screen a) Is the distance traveled by light from the upper and lower slits the same in this case? Which path is longer? b) Suppose that the upper path distance is ml., where m is some integer. Assume that the lower path distance is longer than the upper path by an amount exactly equal to 1/2. In the boxes below,...
1) What is E0 at a point 2.40m from a light source whose output is 18...
1) What is E0 at a point 2.40m from a light source whose output is 18 W? Assume the bulb emits radiation of a single frequency uniformly in all directions. (include appropriate units) 2) What is B0 at a point 2.40m from the light source? (include appropriate units)
Question 5 (1 point) Light from a red laser travels at the speed of light (3.00...
Question 5 (1 point) Light from a red laser travels at the speed of light (3.00 x108 m/s) and has a wavelength of 650 x10-9 meters. What is its frequency in Hz? 0.0046 4.62 x10-4 4.62 x1014 O2.17 x10-15
24.7.1 Regular problem Light of wavelength 540 nm from a green laser is incident on two...
24.7.1 Regular problem Light of wavelength 540 nm from a green laser is incident on two slits that are separated by 0.50 mm; the light reaches a square screen 50 cm x 50 cm that is 1 m away from the slits. Describe quantitatively the pattern that you will see on the screen. Show your work, including all four steps of the problem solving method: Sketch and translate • Visualize the situation and sketch it. • Translate givens into physical...
Imagine that you turn on the lamp in your room that contains an incandescent light bulb and that you stand 1m from the light. Suppose further that your bulb is rated at 100 W. What is the intensity o...
Imagine that you turn on the lamp in your room that contains an incandescent light bulb and that you stand 1m from the light. Suppose further that your bulb is rated at 100 W. What is the intensity of the light that passes out through this sphere at this distance of say 1m? Now compare this to a milliwatt laser at the same distance away. How many times more/less intense is the laser beam to your eye compared to the...
A small bulb is placed in front of a convex lens Suppose that the bulb is...
A small bulb is placed in front of a convex lens Suppose that the bulb is placed as shown. Using all three principal rays, draw an accurate ray diagram to determine the location of the image. Label the image location. Small bulb b. Repeat part a for the case shown at right, in which the bulb is farther from the lens. Small bulb bangladov Lens c. Suppose that in each case above you were to place a small paper screen...
To measure the tiny motion of one tectonic plate relative to another, seismologists in Iceland have...
To measure the tiny motion of one tectonic plate relative to another, seismologists in Iceland have set up the following interferometer-like device: A laser source producing laser light with wavelength 500 nm is set up on one side of a chasm that forms the boundary between two tectonic plates. The light is split into two beams using an angled piece of glass (acting as a "beam splitter"). One part of the beam crosses the chasm and is reflected back by...
Problem 3: Intensity from a distant light source (25 points) Consider an isotropic light source that...
Problem 3: Intensity from a distant light source (25 points) Consider an isotropic light source that emits EM radiation with wavelength A and power Po. (Isotropic- uniformly in all directions). In addition, consider a detector with area a, facing the source which is a long distance R away. (a) Derive a formula for the amplitude of the electric field at the detector (b) Derive a formula for the number of photons per unit time that strike the detector. What is...
1.) If light spreads out in all directions, as it does from a point source, the...
1.) If light spreads out in all directions, as it does from a point source, the intensity at a certain distance from the source depends on the area over which the light is spread Light Light source Sphere a.) For a sphere of radius r, what is the equation for the surface area A? b.) Intensity is calculated by taking the power output of the light source divided by the area over which the light is spread: Where I is...
1) Two parallel beams of light are brought together on a surface. Each beam has wave length h-500...
1) Two parallel beams of light are brought together on a surface. Each beam has wave length h-500 nm and intensity 1 W/m at the surface. What is the resultant intensity for each of the following path lengths or phase differences between the beams? Phase or path length difference Intensity (W/m) 0 radians (phase) T/2 radians (phase) 60 degrees (phase) 3π radians (phase) 300 nm (path length) 1000 nm (path length) 5.5 λ (path length) 2) A wave of wavelength...
3. In this diagram, the paths taken by light striking point B on the screen are shown. Laser beam B screen a) Is the distance traveled by light from the upper and lower slits the same in this case? Which path is longer? b) Suppose that the upper path distance is ml., where m is some integer. Assume that the lower path distance is longer than the upper path by an amount exactly equal to 1/2. In the boxes below,...
Question 5 (1 point) Light from a red laser travels at the speed of light (3.00 x108 m/s) and has a wavelength of 650 x10-9 meters. What is its frequency in Hz? 0.0046 4.62 x10-4 4.62 x1014 O2.17 x10-15
24.7.1 Regular problem Light of wavelength 540 nm from a green laser is incident on two slits that are separated by 0.50 mm; the light reaches a square screen 50 cm x 50 cm that is 1 m away from the slits. Describe quantitatively the pattern that you will see on the screen. Show your work, including all four steps of the problem solving method: Sketch and translate • Visualize the situation and sketch it. • Translate givens into physical...
A small bulb is placed in front of a convex lens Suppose that the bulb is placed as shown. Using all three principal rays, draw an accurate ray diagram to determine the location of the image. Label the image location. Small bulb b. Repeat part a for the case shown at right, in which the bulb is farther from the lens. Small bulb bangladov Lens c. Suppose that in each case above you were to place a small paper screen...
To measure the tiny motion of one tectonic plate relative to another, seismologists in Iceland have set up the following interferometer-like device: A laser source producing laser light with wavelength 500 nm is set up on one side of a chasm that forms the boundary between two tectonic plates. The light is split into two beams using an angled piece of glass (acting as a "beam splitter"). One part of the beam crosses the chasm and is reflected back by...
Problem 3: Intensity from a distant light source (25 points) Consider an isotropic light source that emits EM radiation with wavelength A and power Po. (Isotropic- uniformly in all directions). In addition, consider a detector with area a, facing the source which is a long distance R away. (a) Derive a formula for the amplitude of the electric field at the detector (b) Derive a formula for the number of photons per unit time that strike the detector. What is...
1.) If light spreads out in all directions, as it does from a point source, the intensity at a certain distance from the source depends on the area over which the light is spread Light Light source Sphere a.) For a sphere of radius r, what is the equation for the surface area A? b.) Intensity is calculated by taking the power output of the light source divided by the area over which the light is spread: Where I is...
1) Two parallel beams of light are brought together on a surface. Each beam has wave length h-500 nm and intensity 1 W/m at the surface. What is the resultant intensity for each of the following path lengths or phase differences between the beams? Phase or path length difference Intensity (W/m) 0 radians (phase) T/2 radians (phase) 60 degrees (phase) 3π radians (phase) 300 nm (path length) 1000 nm (path length) 5.5 λ (path length) 2) A wave of wavelength...
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