Ray Optics Test...

An experiment is performed to find the refractive index of glass using a travelling microscope. In this experiment distance are measured by

The head lights of a jeep are 1.2 m apart. If the pupil of the eye of an observer has a diameter of 2 mm and light of wavelength 5896 Å is used, what should be the maximum distance of the jeep from the observer if the two head lights are just separated?

What cause chromatic aberration?

In Huygen's eye piece

For compound microscope f_o =1 cm, f_e = 2.5 cm. An object is placed at distance 1.2 cm from object lens. What should be length of microscope for normal adjustment?

Two convex lenses of focal lengths 0.03 m and 0.05 m are used to make a telescope. The distance kept between the two in order to obtain an image at infinity is

The magnification produced by the objective lens and the eye lens of a compound microscope are 25 and 6 respectively. The magnification of this microscope is

Identify the wrong description of the below figures

A compound microscope has an eye piece of focal length 10 cm and an objective of focal length 4 cm. Calculate the magnification, if an object is kept at a distance of 5 cm from the objective, so that final image is formed at the least distance of distinct vision 20 cm.

Two point white does are 1 mm apart on a black paper. They are viewed by eye of pupil diameter 3 mm. Approximately, what is the maximum distance at which these dots can be resolved by the eye? [take wavelength of light = 500 nm]