A reduced virtual image if formed by a single negative lens regardless of the object position. An enlarged virtual image can be formed by a positive lens by placing the object inside the principal focal point.
Wednesday, August 8, 2007
Ray diagram for Covex lenses
For an object outside the focal point, a real inverted image will be formed.
Ray diagram for Convex mirror
A convex mirror forms a virtual image.
Using a ray parallel to the principal axis and one incident upon the center of the mirror, the position of the image can be constructed by back-projecting the rays which reflect from the mirror. The virtual image that is formed will appear smaller and closer to the mirror than the object.
Ray diagram for Concave mirror
If the object is outside the focal length, a concave mirror will form a real, inverted image.
Saturday, June 30, 2007
Graphical and Component method
Component Method
1.) Gather the given data. Make a simple drawing that doesn't have to be scale, but is with respects to the supposedly layout of the directions.
2.) Use the SOH CAH TOA method to be able to determine the x and y vectors for each distance plotted. Record all of these values. Remember that the x-axis to the left is negative, and the y-axis to the lower portion is negative.
3.) After getting all of these values, add them all up to arrive at a total of the x values and the y values. Using SOH CAH TOA method, determine first the angle of the final distance, then get the hypotenuse of the total x and y values (one of these is surely the opposite and adjacent based on the final angle you arrived at). The angle you arrived at, and the hypotenuse you determined is the final distance and direction.
Graphical Method
1.) Using the given, make a scale that would be rational to the quantities.
2.) Use the scale to fit and draw the given direction and distances on the sheet.
3.) Be sure to note the correct distances and angles to the respective direction.
4.) After plotting all given, measure the line and angle from the starting point to the end point. Be sure to use scale and correct direction in determining the total distance and the final direction and angle.
1.) Gather the given data. Make a simple drawing that doesn't have to be scale, but is with respects to the supposedly layout of the directions.
2.) Use the SOH CAH TOA method to be able to determine the x and y vectors for each distance plotted. Record all of these values. Remember that the x-axis to the left is negative, and the y-axis to the lower portion is negative.
3.) After getting all of these values, add them all up to arrive at a total of the x values and the y values. Using SOH CAH TOA method, determine first the angle of the final distance, then get the hypotenuse of the total x and y values (one of these is surely the opposite and adjacent based on the final angle you arrived at). The angle you arrived at, and the hypotenuse you determined is the final distance and direction.
Graphical Method
1.) Using the given, make a scale that would be rational to the quantities.
2.) Use the scale to fit and draw the given direction and distances on the sheet.
3.) Be sure to note the correct distances and angles to the respective direction.
4.) After plotting all given, measure the line and angle from the starting point to the end point. Be sure to use scale and correct direction in determining the total distance and the final direction and angle.
Subscribe to:
Posts (Atom)