Leadership

Physics

Eight Standard

Test your understanding of this lesson Light | Introduction:-

1)
In case of reflection –
  • Light goes to the 2nd medium after reflection
  • Returns to 1st medium after reflection
  • Gets completely absorbed by the surface
  • None of the above
2)
Angle of incidence and angle of refraction are not equal –
  • In diffused reflection
  • Always equal
  • Depends on the reflecting surface
  • None of the above
3)
If a body absorbs all the light incidenting on it then we see the body as –
  • White
  • Black
  • Seven colours in VIBGYOR order
  • None of the above
4)
A ray of light ray must be –
  • Strictly monochromatic
  • Broad beam of light
  • Narrow beam of light
  • None of the above
5)
In case of normal reflection the angle of incidence and angle of reflection are (in degrees)-
  • \(0^{0}\),\(0^{0}\)
  • \(90^{0}\),\(90^{0}\)
  • \(0^{0}\),\(90^{0}\)
  • \(90^{0}\),\(0^{0}\)
Hand draw

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