- #1
DriggyBoy
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The size of image formed by a concave mirror is proportional to R^n where R is radius of curvature. Find n.
Cannot understand how to proceed. Need help.
Cannot understand how to proceed. Need help.
DriggyBoy said:Ok thnx...but what if the object is at infinite position??
...btw answer given in the book is 1
n=1
DriggyBoy said:Cannot proceed... 1/v + 1/u = R/2
The formula is n = -2R, where n is the power of the mirror and R is the radius of curvature.
The power of a concave mirror, represented by n, is directly proportional to the size of the reflected image. This means that as the power increases, the size of the image also increases.
To find the value of n for a concave mirror, you need to know the radius of curvature. Once you have this value, you can plug it into the formula n = -2R and solve for n.
Yes, the value of n can be negative for a concave mirror. This indicates that the image is inverted and magnified.
The value of n remains constant when the distance between the object and the mirror is changed. This means that the power of the mirror will not change, but the size and location of the reflected image will be affected.