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An object is kept in front of a concave mirror of focal length 20cm the image is 3 times the size of the object calculate 2 possible diastances of the object from the mirror?
Wiki User
∙ 15y ago
40cm
Wiki User
∙ 15y ago
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Will focal length of concave mirror change when kept in water?
yes
Focal length of a concave mirror?
1/object distance + 1/ image distance = 1/focal length
What is the relation between focal length and center of curvature?
The focal length of a concave mirror is about equal to half of its radius of curvature.
How do we calculate length of helical spring?
How do calculate spiral length of Spiral rings
How do you get the volume of a rectangular prism if length is not given?
You cannot calculate it without the length. However, it is possible to get the volume by submerging the prism in water and measuring the volume of the displaced water.
How can a rough value of the focal length of a concave mirror be obtained?
One way to estimate the focal length of a concave mirror is to use the mirror formula: 1/f = 1/do + 1/di, where f is the focal length, do is the object distance, and di is the image distance. By measuring the object distance and the corresponding image distance, you can calculate an approximate value for the focal length of the concave mirror.
How do you find focal length of concave mirror?
The focal length of a concave mirror can be found by using the mirror formula, which is 1/f = 1/do + 1/di, where f is the focal length, do is the object distance, and di is the image distance. By measuring the object and image distances from the mirror, you can calculate the focal length using this formula.
What is the focal length of concave mirror of radius 20cm?
The focal length of a concave mirror is half of its radius of curvature. Therefore, for a concave mirror with a radius of 20 cm, the focal length would be 10 cm.
Will focal length of concave mirror change when kept in water?
yes
A concave lens is kept in contact with convex lens of focal length 20cm the combination works as a converging lens of focal length 100cmcalculate the power of concave lens?
i think it is -0.06m i.e. 6cm
Why focal length of convex lens is easier to find than a concave lense?
The focal length of a convex lens is easier to find than a concave lens because for a convex lens, the focal length is positive and is measured from the lens to the focal point. In contrast, for a concave lens, the focal length is negative and the rays of light are diverged. This makes it more challenging to find the focal point accurately.
How do you calculate image position when given magnification of ian image by a concave miarror?
To calculate the image position when given magnification by a concave mirror, you can use the mirror equation: 1/f = 1/d_o + 1/d_i, where f is the focal length of the mirror, d_o is the object distance, and d_i is the image distance. Magnification, M, is also given by -d_i/d_o. By substituting the values of magnification and focal length into the mirror equation, you can solve for the image distance and then determine the image position.
Focal length of a concave mirror?
1/object distance + 1/ image distance = 1/focal length
What does a concave triangle look like?
s donkey with its legs the same length
What is the medical application of the focal length of concave lens?
medical application of lens
What is formula for concave lens?
The formula for a concave lens is the same as for a convex lens, which is given by the lens formula: 1/f = 1/v + 1/u, where f is the focal length of the lens, v is the image distance, and u is the object distance. For a concave lens, the focal length is considered negative.
What is the relation between focal length and center of curvature?
The focal length of a concave mirror is about equal to half of its radius of curvature.
