resolving power and magnifying power of a lens

= half angle of the cone of light from the point object kept under objective lens. m = refractive index of the medium between the object and objective lens. Resolving power of a telescope is the reciprocal of the small angular separation d q between two ..

The ability of the instrument to resolve the images of two point objects lying close to each other. Due to the wave nature of light each point object produces its own diffraction pattern, which overlap, and the image can no longer be identifie..

The magnifying power of a compound microscope is defined as the ratio of the size of the final image (I 2 ) as seen through the microscope to the size of the object as seen with a naked eye. Image Formation in a Compound Microscope = m o b j e c t i v e x m e y e p i e c e = m o..

Simple Microscope or Magnifying Lens - Magnifying Lens It consists of a converging lens of small focal length. By keeping the object close to the lens, a virtual, erect and magnified image is obtained as sho..

Power of a Lens - Whenever a ray of light passes through a lens (except when it passes through the optical centre) it bends. The bending of light rays towards the principal axis is called convergence and bending of light rays away from the principal axis is called dive..

Power of a Lens - Whenever a ray of light passes through a lens (except when it passes through the optical center) it bends. The bending of light rays towards the principal axis is called convergence and bending of light rays away from the principal axis is called dive..

Ability of the lens to converge a beam of light falling on the lens..

Whenever a ray of light passes through a lens (except when it passes through the optical center) it bends. The bending of light rays towards the principal axis is called convergence and bending of light rays away from the principal axis is called divergenc..

Magnifying power of an astronomical telescope may be defined as the ratio of the angle subtended at the eye by the image to the angle subtended at the eye by the object. From the ray diagram we know that: P l C is the focal length of the objective and P l D is the focal length o..

Power of Accommodation - A normal eye can see both the distant and the nearby objects clearly. In the case of the eye, the image distance (v) is fixed as the distance between the eye lens and retina remains the same but the object distance (u) varies. The eye focuses the images ..