Don't use high-beam headlights within how many feet of oncoming vehicles?

A. 200 feet
B. 300 feet
C. 400 feet
D. 500 feet



Answer :

Final answer:

The answer explains the resolution of two headlights, the practical limit for the eye, and the telescope mirror diameter calculation.


Explanation:

Resolution of Two Headlights: The maximum distance at which the eye can resolve two headlights depends on the pupil diameter. With a pupil diameter of 0.40 cm and headlights 1.3 m apart, the maximum distance can be calculated.

Practical Limit for the Eye: Calculating the practical limit for the eye, the greatest possible distance a car can be from you for you to resolve its two headlights is determined.

Telescope Mirror Diameter: To see small details on the Moon from a distance, the minimum diameter mirror on a telescope needed is calculated using the average wavelength of light received.


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