Optics

Descripción

This quiz tests your knowledge on optics. This is essential for anyone studying physics
leonie.examtime
Test por leonie.examtime, actualizado hace más de 1 año
leonie.examtime
Creado por leonie.examtime hace más de 10 años
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Resumen del Recurso

Pregunta 1

Pregunta
When an image is created using a concave lens, What type of image is created?
Respuesta
  • Virtual
  • Real
  • No image is created

Pregunta 2

Pregunta
When an image is created using a convex lens, what type of image is created?
Respuesta
  • A virtual image
  • A real image
  • The image can be real or virtual

Pregunta 3

Pregunta
Light waves travel in straight lines
Respuesta
  • True
  • False

Pregunta 4

Pregunta
The refractive number index of a medium is unitless
Respuesta
  • True
  • False

Pregunta 5

Pregunta
When light rays go through a convex lens, what happens to them?
Respuesta
  • Nothing happens them
  • The diverge away from the normal
  • They converge towards the normal

Pregunta 6

Pregunta
What is the power of a convex lens?
Respuesta
  • Positive
  • Negative
  • It has no power

Pregunta 7

Pregunta
If a ray hits a medium at the medium's critical angle, the ray passes through the medium without being deflected
Respuesta
  • True
  • False

Pregunta 8

Pregunta
What units do we measure the power of lenses in?
Respuesta
  • Watt
  • Coulomb
  • Dipoles

Pregunta 9

Pregunta
If a ray of light travels from one medium into a denser medium (one with a higher refractive index), at what speed does the ray travel in the new medium?
Respuesta
  • At a faster speed
  • At a slower speed
  • At the same speed

Pregunta 10

Pregunta
What is the power of a concave lens?
Respuesta
  • Positive
  • Negative
  • It has no power
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