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AP Physics 2: 1.4 Waves. Arrange these objects and superpowers in decreasing order according to wavelength of relevant radiation.
AP Physics 2: 1.2 Waves. What is the mathematical description of the wave?
AP Physics 2: 2.4 Waves 4 Views
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Description:
AP Physics 2: 2.4 Waves. Where should Vicky place the object to project a silly image on her partner's forehead?
Transcript
- 00:00
Thank you We sneak and here's your shmoop du jour
- 00:05
brought to you by lab partners Nothing's better than a
- 00:08
good lab partner and nothing's worse than a lab partner
- 00:10
who just sits there not participating just looking at his
- 00:13
phone and making us do all the work while he
Full Transcript
- 00:16
plays candy crush Yeah that that were bitter ryan from
- 00:19
mrs anders glass Well during a classroom optics experiment bart
- 00:23
stares through a thin converging lens with a focal length
- 00:27
of two inches located ten inches away Vicky bart's lab
- 00:32
partner and friend wants to project a silly image onto
- 00:35
his forehead Where should vickie place the object and hear
- 00:39
the potential answers All right Okay well this is how
- 00:44
physics students cut it loose Bye Goofing around with optics
- 00:49
Yeah sure It might not be the most hilarious prank
- 00:51
in the world but you're worse at least nothing's exploding
- 00:54
like those chemistry All right well what we need to
- 00:56
be able to solve this is the thin lens equation
- 01:00
The thin lens question means that the reciprocal of the
- 01:03
focal length equals the reciprocal of the object Distance plus
- 01:06
the reciprocal of the image Distance We have the image
- 01:10
distance ten inches and the focal length Two inches We
- 01:14
just need to plug those numbers in and solve for
- 01:16
the object Distance Right Well crunching the numbers shows us
- 01:19
that the object needs to be placed two point five
- 01:21
inches from the lens Now since this is a converging
- 01:24
lens and not a mirror the object needs to be
- 01:27
on the opposite side of the lens from bart for
- 01:29
the image to be projected on bart's Cranium don't When
- 01:33
object and image distances are on opposite sides of a
- 01:36
lens the distances are positive So since we know the
- 01:41
object distance and on which side of lens the object
- 01:44
needs to be we know That the correct answer has
- 01:46
to be deep And remember there are worse things your
- 01:49
lab partner can do than project a goofy and john
- 01:52
your forehead After all that fire extinguisher is there for 00:01:55.825 --> [endTime] a reason Teo
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