Calculate focal length of a spherical mirror from the following observations : object distance, `u = (50.1 +- 0.5)cm` and image distance , `upsilon = (20.1 +- 0.2)cm.`

Calculate focal length of a spherical mirror from the following observation: object distance u=(10 pm 0.1)cm and image distance v=(10pm0.1)cm .

What will be focal length of a spherical mirror if distance of object from the mirror is (30 pm 0.5)cm and distance of image from the mirror is (10 pm 0.2) cm ?

A spherical mirror forms an image of magnification3. The object distance, if focal length of mirror is 24cm, may be

Statement I : Focal length of a spherical mirror depends on the distances of object and image from the mirror. Statement II : (1)/(f ) = (1)/(v ) + (1)/(u)

In u-v method to find focal length of a concave mirror, if object distance is found to be 10.0 cm and image distance was also found to be 10.0 cm , then find maximum permissible error in (f).

Calculate the focal length of a convex lens which produces a virtual image at a distance of 50 cm of an object placed 20 cm in front of it.

The distance of an object from a spherical mirror is equal to the focal length of the mirror. Then the image.

The distance of an object from a spherical mirror is equal to the focal length of the mirror. Then the image:

A telescope consists of two lenses of focal lengths 10cm and 1cm . Calculate the length of the telescope, when an object is kept at a distance of 60cm from the objective, and the final image is formed at least distance of distinct vision.