physics 2 practice test multiple choice questions 4) What type of image would a

Question

physics 2 practice test multiple choice questions 4) What type of image would a concave mirror produce when the object is inside its focal length? A) Real and Erect B) Real and Inverted C) Virtual and Erect D) Virtual and Inverted 5) If a flashlight is out in space, far away from everything, and shines a beam to the north, which way will the flashlight move? A) North B) South C) East D) West E) It will not move 6) If two polarized filters are blocking the same beam, one after another, how should you orient a third filter placed in between the two in order to allow the most light through? A) Closer to the orientation of the first B) Closer to the orientation of the second C) Half way in between the orientations of the first two D) Orientation does not matter

Explanation / Answer

You ask more than one question, I will answer the first one. You should have to ask other in different psot.

4. For this case s is less than f lenght so using the equation:

1/s + 1/s' = 1/f

solving for s'

s' = (s-f)/sf

if s< f then s' is negative so the imagen is virtual

using the magnification equation: m = -s'/s, this quantity is positive so the imagen is erect

so the answer is: C

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