The objective and the eye-piece of a microscope have focal lengths of `0.02`m and `0.04`m, respectively and are placed `0.15`m apart. If the final image is situated `0.25`m from the eye-piece, how far must the object be from the objective?

In a compound microscope, the objective and eye piece have focal lengths 0.95 cm and 5 cm respectively, and are kept at a distance of 20 cm . The final image is formed at a distance of 25 cm from the eye piece. Calculate the position of the object and the total magnification.

In a compound microscope, the objective and eye piece have focal lengths 0.95 cm and 5 cm respectively, and are kept at a distance of 20 cm . The final image is formed at a distance of 25 cm from the eye piece. Calculate the position of the object and the total magnification.

In a compound microscope, the objective and eye-piece have focal lengths of 0.95 cm and 5 cm respectively and are kept at a distance of 20 cm.The last image is formed at a distance of 25 cm from the eye-piece. Calculate the position of the object and the total magnification.

The focal lengths of the objective and the eye-piece of an astronomical telescope are 0.25 m and 0.025 m, respectively. The telescope is focussed on an object 5m from the objective, the final image being formed 0.25 m from the eye of the observer. Calculate the length of the telescope and its magnifying power.

The focal lengths of the objective and the eye-piese of an astronomical telescope are 0.25 m and 0.025 m, respectively. The telescope is focussed on an object 5 m from the objective, the final image being formed 0.25 m from the eye of the observer. Calculate the length of the telescope and its magnifying power. [Hint : Mag. power = v_(0)//u_(e) ]

The focal lengths of the objective and the eye-piece of an astronomical telescope are 0.25 m and 0.02m, respectively. The telescope is adjusted to view an object at a distance of 1.5 m from the objective, the final image being 0.25 m from the eye of the observer. Calculate the length of the telescope and the magnification produced by it.

The focal lengths of the objective and eye-piece of a compound microscope are 1 cm and 5 cm, respectively. An object is placed 11 mm from the objective and the final image is 25 cm from the eye. Find : (a) magnification produced and (b) the separation of the lenses.