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- Aim. To determine the focal length of: Concave mirror. Convex lens by obtaining the image of a distant object.
- Theory. How to Find Focal Length of Concave Mirror? Following are the ways to obtain the focal length of the concave mirror: A concave mirror is defined as the spherical mirror whose reflecting surface is curved inwards and follows laws of reflection of light.
- To Determine Focal Length of a Given Concave Mirror. Materials Required. A concave mirror. A measuring scale. A screen holder. A mirror holder. A mirror stand. Procedure.
- To determine focal length of a convex lens. Materials Required. A wooden bench. A convex lens. A lens holder. A screen fixed to a stand. A measuring scale. Experimental Setup.
- CBSE Class 10 Science Lab Manual Experiment – 4
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Aim To determine the focal length of (i) concave mirror (ii) convex lens by obtaining the image of a distant object. Theory Focal length of Concave Mirror 1. A spherical mirror, whose reflecting surface is curved inwards, that is, faces towards the centre of the sphere, is called a concave mirror. 2. A concave mirror, like a plane mirror, obeys the...
Question 1: Give the mirror image of SMART. Answer: Question 2: Name two types of spherical mirrors. Answer: Concave mirror and convex mirror. Question 3: Which mirror always produces virtual image? Answer: Plane mirror and convex mirror. Question 4: Define aperture of a spherical mirror. Answer: It is the diameter of the circular rim of a spherica...
Question 1: Just by looking at an object, how do you come to know whether it is a smooth surface or rough one? Answer: When the object is smooth, reflection is regular and the object shines. When the object is rough, reflection is irregular, the object appears to be dull. Question 2: What type of image is formed by a plane mirror? Answer: Plane mir...
Question 1: How will you distinguish between a concave and a convex mirror? Answer: The differences between concave and convex mirror are: Question 2: To detemine the focal length of a concave mirror, a student focuses a classroom window, a distant tree and the sun on the screen with the help of a concave mirror. In which case will the student get ...
Questions based on Procedural and Manipulative Skills Question 1: The diameter of a spherical mirror is called (a) radius of curvature(b) aperture (c) focal plane (d) pole Answer: (b) Explanation: The diameter of a spherical mirror is called its aperture. Question 2: The distance between the pole and the principal focus of a concave mirror is calle...
Learn how to determine the focal length of a concave mirror by obtaining the image of a distant object on a screen. The web page explains the terms, laws and rules related to concave mirror and lens, and provides the experiment procedure and theory.
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Jan 27, 2022 · Learn how to define and measure the focal length of a concave mirror, and see an experiment with lab report and conclusion. Find the focal length, radius of curvature and image distance of a concave mirror using formulas and examples.
5 days ago · Learn how to determine the focal length of a concave mirror using the law of reflection, the mirror formula, and the image of a distant object. Also, find out the focal length of a convex mirror using a convex lens.
- The relationship between the radius of curvature and focal length r is represented by r =2f(the image will be uploaded soon)Consider a ray of light...
- For all positions of an object, a convex mirror forms virtual, erect, and diminished image. As the image diminished in size, a broader field of vie...
- The main important differences between Convex and Concave mirrors are:i) Focal length of a Convex mirror is Positive i) focal length of a Concave m...
- Image Formation by Plane Mirror. The "object" could be any physical object or a source of light, but we often depict it as an upright arrow.
- Concave Mirror. The distance from the focal point to the mirror is called the focal length, f. We will not go into the details of the proof, but it can be shown using the small angle approximation that the focal length is equal to half the radius of curvature
- Principal Rays of a Concave Spherical Mirror. Using rays to determine the location, orientation, and the size of the image is known as ray tracing.
- Deriving Equations for a Concave Spherical Mirror. Since we are using the small angle approximation (we assume that all distances are close to the optical axis), the mirror can be approximated as flat where light is reflected, as shown by the bold vertical line.
Oct 19, 2019 · The u-v method to find focal length of a given concave mirror or convex lens consists of following steps. For an appropriate object distance u, find the image distance v . Measure u and v . Repeat above step at few more object distances.
Jan 11, 2021 · The distance along the principle axis from the mirror to the focal point is called the focal length. The focal length is also exactly one-half of the radius of curvature of the spherical mirror. That is, if the spherical mirror has a radius of 8 cm, then the focal length will be 4 cm.
