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?