subject
Physics, 29.10.2020 21:50 sundaywallace6361

A positive lens has a focal length f. The only way to get a magnification of -1 is to
a. place a real object at the focal point.
place a real object at a distance 2f from the lens.
place a virtual object at a distance ?f from the lens.
d. Magnifications can never be negative.
None of these is correct.
e.

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 14:30
What does the term discrediting mean?
Answers: 2
question
Physics, 21.06.2019 20:20
Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?
Answers: 1
question
Physics, 22.06.2019 13:30
Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25º, b) el tiempo que el balón permanece en el aire.
Answers: 1
question
Physics, 22.06.2019 23:30
The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength
Answers: 2
You know the right answer?
A positive lens has a focal length f. The only way to get a magnification of -1 is to
a. plac...
Questions
question
Geography, 10.09.2019 00:20
Questions on the website: 13722363