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Refraction and Snell's law | Geometric optics | Physics | Khan Academy

966,354 views

Khan Academy

Video Language:

  • English

Caption Language:

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Accent:

  • English (US)

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Category:

  • Education

Tags :

Intro:

Video Vocabulary

reflected

/rəˈflekt/

verb

throw back heat, light, or sound without absorbing it.

interface

/ˈin(t)ərˌfās/

noun verb

Place where things come together to communicate. To make two different elements interact.

relative

/ˈrelədiv/

adjective noun

Measured or considered in comparison to another. Members of the family.

normally

/ˈnôrməlē/

adverb

under normal or usual conditions.

learned

/ˈlərnəd/

adjective verb

having acquired much knowledge through study. To get knowledge or skills by study or experience.

perpendicular

/ˌpərpənˈdikyələr/

adjective noun

Being at right angles to a given line or plane. line at 90° to given plane.

travels

/ˈtravəl/

noun other verb

action of travelling. Journeys to other places, often for pleasure. make journey.

through

/THro͞o/

adjective adverb preposition

From one end or side of something to the other. expressing movement into one side and out of other side of opening etc.. Over, in, across an entire thing or place.

incident

/ˈinsəd(ə)nt/

adjective noun

resulting from. event or occurrence.

against

/əˈɡenst/

preposition

In opposition to; disagreeing with.

different

/ˈdif(ə)rənt/

adjective

not same as another or each other.

nothing

/ˈnəTHiNG/

adjective adverb noun pronoun

of no value. not at all. Number or value of zero. not anything.

continue

/kənˈtinyo͞o/

verb

To start doing again after a break, pause, or stop.

fastest

/fast/

adjective adverb

Moving or able to move the most quickly. at high speed.

something

/ˈsəmˌTHiNG/

adverb pronoun

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.

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