Questions in Ray Optics and Optical Instruments

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	The objective lens of a compound microscope produces magnification of 10. In order to get an overall magnification of 100 when image is formed at 25 cm from the eye, the focal length of the eye lens should be
	A person using a lens as a simple microscope sees an
	Least distance of distinct vision is 25 cm. Magnifying power of simple microscope of focal length 5 cm is
	The objective of a compound microscope is essentially
	Resolving power of a microscope depends upon
	In a compound microscope cross-wires are fixed at the point
	In a compound microscope, the focal lengths of two lenses are 1.5 cm and 6.25 cm an object is placed at 2 cm form objective and the final image is formed at 25 cm from eye lens. The distance between the two lenses is
	The length of the tube of a microscope is 10 cm. The focal lengths of the objective and eye lenses are 0.5 cm and 1.0 cm. The magnifying power of the microscope is about
	In a compound microscope, the intermediate image is
	The magnifying power of a compound microscope increases when