The photoelectric and photovoltaic effects | Physics | Khan Academy

แชร์
ฝัง
  • เผยแพร่เมื่อ 21 พ.ย. 2024

ความคิดเห็น • 19

  • @exo-580
    @exo-580 หลายเดือนก่อน

    i like the intuition of Mahesh,much respect sir!

  • @shabbirahmeddar7765
    @shabbirahmeddar7765 5 หลายเดือนก่อน +3

    Very comprehensively defined the concept of photo electric effect. Thanks for that.

  • @prakashs538
    @prakashs538 หลายเดือนก่อน

    Thank you very much for this video . I had sound understanding with this video

  • @mesenburg
    @mesenburg 5 หลายเดือนก่อน +6

    Richard Feynman
    Would be proud of Khan academy
    Simple as possible
    Clear and concise
    Waves of light
    Packets of light
    Wavelengths of light hitting metal
    Packets of light hitting metal
    Releasing electrons in the photoelectric effect
    The higher the frequency
    The more electrons ejected depending upon the metal reflected
    The teacher explains with potassium as the base metal
    Using the rainbow red orange yellow green blue indigo violet
    To show how the various energies of light colors
    Affect a substance such as a metal
    With the ejection of electrons depending upon the required energy from the wavelengths or pockets of light energy
    Thank you Khan academy
    Carl Sagan would be proud
    Physicist rule
    Origins of order in biology
    Patterns of nature
    Repeating in the living room
    Snowflake
    6 vold symmetry
    Spherical oil and water
    Rainbow Brite
    The arm patterns are used over again
    The organ patterns are used over again
    The human body is not an ad hoc contraption
    Built piece by piece by piece
    Bit by bit
    But there is self-organization at a higher level of order
    Repeating the organs
    The limbs and fingers
    Patterns of a deeper nature
    Thank you Khan academy

  • @dominicesteban3174
    @dominicesteban3174 5 หลายเดือนก่อน

    Beautiful visuals and well worth the effort as they make SO much difference in getting these ideas across. The attention to detail in the colors, the amplitudes, the transition to photons, etc. is all brilliantly effective.

  • @trustee1108
    @trustee1108 4 หลายเดือนก่อน

    very good explanation

  • @mglsj
    @mglsj 5 หลายเดือนก่อน

    Thanks a lot Mahesh Sir

  • @NandhaGopal-b8e
    @NandhaGopal-b8e 5 หลายเดือนก่อน

    Sir what if we consider the electric field of the electromagnetic wave is responsible for the ejection of electron instead of the imagining as photon like we did in reflection of light
    So higher the frequency the electric field wave the more the energy causes the of the light
    And thanks for this amazing explanation

  • @richarddavis8034
    @richarddavis8034 3 หลายเดือนก่อน

    I have one question. Why don't multiple photons of less than 2.3ev 'team up' to combine their energy and cause the emission of an electron?

  • @oliverf.rupert5408
    @oliverf.rupert5408 5 หลายเดือนก่อน +1

    Wow will that help with Gamma effect on meatal?

  • @asdksd3482
    @asdksd3482 5 หลายเดือนก่อน +1

    Can the wave nature associated with a photon be referred to as matter waves?

  • @abrarlgayar1648
    @abrarlgayar1648 5 หลายเดือนก่อน +1

    Does anyone know what app can i use to write documents like this style?

  • @chlodnia
    @chlodnia 5 หลายเดือนก่อน

    Thanks

  • @gradexp
    @gradexp 5 หลายเดือนก่อน +2

    Ультрафиолет уничтожает металлы

  • @wojtekgabrielli2722
    @wojtekgabrielli2722 5 หลายเดือนก่อน +5

    explanation why light is weird: we are looking into the boundary of universes resolution, you cannot draw a perfect circle on your monitor, if you zoom in enough there are only strait lines, light is the same, cannot draw a perfect wave without infinitely small resolution, therefor we get discrete small points

  • @sheetal-x4q
    @sheetal-x4q 5 หลายเดือนก่อน

    Pls tell me the name of this teacher, I only want to watch the video when he's explaining.

    • @shivamsomilgupta5394
      @shivamsomilgupta5394 5 หลายเดือนก่อน

      Mahesh shenoy
      Used to taught on khan academy india earlier

    • @me_neutron
      @me_neutron 4 หลายเดือนก่อน

      You can also find him at floatheadphysics

  • @Program0101
    @Program0101 5 หลายเดือนก่อน