Questions 1. What is meant by a virtual image? Under what conditions will a conc
ID: 1770257 • Letter: Q
Question
Questions 1. What is meant by a virtual image? Under what conditions will a concave mirror give a virtual image? What kind of mirror does a dentist use when he/she wants to observe a magnified image of a tooth, and where does he locate it for this purpose? In a projection lantern at least half the light from the lamp is headed in the wrong direction: where would you put a mirror and what type would you use, to return this light to the vicinity of the filament, this time headed in the right direction? 3. 4. As one approaches a concave mirror from a large distance, his image may vanish from his sight. For this effect to be most complete, where should the image be (a) at infinity? (b) at the mirror's 5. principal focus? (c) on his eyeball:? At that moment, where should the observer be? Approximate the focal length of a plane mirror. How do the Eqs. 3 and 4 look like under this circumstance? 6.Explanation / Answer
1)The technical defination is:
The optical image of an ojbect which is formed by the apparent divergence of the light rays from a mirror.
A concave mirror forms a virtual image in the following object positions
When the object is placed between the principal focus
2)Concave mirrors are used by the dentists. The image is located at infinity.
3)We will use a concave mirror and we will place it facing the curvature side towards the lantern so that i converges all the light to the filament.
4)(b)At the mirror's principle focus
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.