leonie.examtime
Quiz by , created more than 1 year ago

This quiz tests your knowledge on optics. This is essential for anyone studying physics

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leonie.examtime
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Optics

Optics

Question 1 of 10

1

When an image is created using a concave lens, What type of image is created?

Select one of the following:

  • Virtual

  • Real

  • No image is created

Explanation

Question 2 of 10

1

When an image is created using a convex lens, what type of image is created?

Select one of the following:

  • A virtual image

  • A real image

  • The image can be real or virtual

Explanation

Question 3 of 10

1

Light waves travel in straight lines

Select one of the following:

  • True
  • False

Explanation

Question 4 of 10

1

The refractive number index of a medium is unitless

Select one of the following:

  • True
  • False

Explanation

Question 5 of 10

1

When light rays go through a convex lens, what happens to them?

Select one of the following:

  • Nothing happens them

  • The diverge away from the normal

  • They converge towards the normal

Explanation

Question 6 of 10

1

What is the power of a convex lens?

Select one of the following:

  • Positive

  • Negative

  • It has no power

Explanation

Question 7 of 10

1

If a ray hits a medium at the medium's critical angle, the ray passes through the medium without being deflected

Select one of the following:

  • True
  • False

Explanation

Question 8 of 10

1

What units do we measure the power of lenses in?

Select one of the following:

  • Watt

  • Coulomb

  • Dipoles

Explanation

Question 9 of 10

1

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?

Select one of the following:

  • At a faster speed

  • At a slower speed

  • At the same speed

Explanation

Question 10 of 10

1

What is the power of a concave lens?

Select one of the following:

  • Positive

  • Negative

  • It has no power

Explanation

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