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Using the values of u and v, the focal length of the concave lens is calculated using the formula, f= uv/u-v.
- What is the formula of concave lens?
- What is the formula of focal length in lens?
- How do you find the focal length of a concave and convex lens?
- What is the focal of concave lens?
What is the formula of concave lens?
The focal length, image distance, and object distance are all connected in the lens formula for concave and convex lenses. The formula 1/f = 1/v + 1/u can be used to establish this link. The focal length of the lens is f, and the distance of the generated image from the lens' optical centre is v in this equation.
What is the formula of focal length in lens?
So, the final answer is f=u×vu−v. Note: When the subject is in focus, the focal length of the lens is the distance between the lens and the image sensor, normally expressed in millimetres (e.g., 28 mm, 50 mm, or 100 mm).
How do you find the focal length of a concave and convex lens?
To determine focal length of a convex lens
Place the holder with the screen on the bench. The position of the screen should be such that the sharp image of the distant object is obtained on it. The difference between the position of the lens and the screen is equal to the focal length of the given convex lens.
What is the focal of concave lens?
According to the sign convention, the focal length of a concave lens is always negative.
