Quiz about Ray Diagrams and Lens Equation

Question 1

This ray diagram is for which mirror?

Accepted Answer

concave

Answer

convex

Answer

plane

Answer

window

Question 2

In the image, all the rays meet at F, What is F

Accepted Answer

focal point

Answer

focal length

Answer

center of curvature

Answer

reflection

Question 3

This image is showing a convex mirror because the image is (choose 2 answers)

Accepted Answer

the focal point is behind the mirror

Accepted Answer

real light rays don't meet

Answer

real light rays meet behind the mirror

Answer

the focal point is in front of the mirror

Question 4

If the object is between C and f, the image is ...

Accepted Answer

image is real, bigger, and inverted

Answer

image is real, smaller, and inverted

Answer

image is real, smaller, and upright

Answer

image is virtual, smaller, and inverted

Question 5

The diagram shows a light ray approaching a mirror. Which of the diagrams below shows how the light travels after striking the mirror?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 6

The arrows in the diagrams below represent light. Which diagram best shows how a glass lens refracts light?

Accepted Answer

A) Diagram 1

Answer

B) Diagram 2

Answer

C) Diagram 3

Answer

D) Diagram 4

Question 7

What is the lens equation used to relate the object distance (d_o), image distance (d_i), and focal length (f) of a lens?

Accepted Answer

$$\frac{1}{f} = \frac{1}{d_o} + \frac{1}{d_i}$$

Answer

$$f = d_o + d_i$$

Answer

$$f = \frac{d_o \cdot d_i}{d_o + d_i}$$

Answer

$$\frac{1}{f} = \frac{d_o + d_i}{d_o \cdot d_i}$$

Question 8

Which type of lens converges parallel rays of light to a focal point?

Accepted Answer

Convex lens

Answer

Concave lens

Answer

Biconcave lens

Answer

Plano-concave lens

Question 9

If an object is placed at the focal point of a convex lens, what will be the nature of the image formed?

Accepted Answer

No image is formed

Answer

Real, inverted, and magnified

Answer

Virtual, upright, and magnified

Answer

Real, upright, and reduced

Question 10

In a ray diagram for a convex lens, which ray passes through the center of the lens without bending?

Accepted Answer

Ray passing through the center of the lens

Answer

Ray parallel to the principal axis

Answer

Ray passing through the focal point

Answer

Ray passing through the focal point on the other side

Question 11

What happens to the image distance if the object distance is increased in a convex lens setup, keeping the focal length constant?

Accepted Answer

Image distance decreases

Answer

Image distance increases

Answer

Image distance remains the same

Answer

Image distance becomes zero

Question 12

Which of the following is a real-world application of convex lenses?

Accepted Answer

Magnifying glasses

Answer

Rearview mirrors

Answer

Peepholes in doors

Answer

Diverging lenses in cameras

Question 13

In a ray diagram, what is the significance of the principal axis?

Accepted Answer

It is the line that passes through the center and focal points of the lens

Answer

It is the line along which the lens is thickest

Answer

It is the line perpendicular to the lens surface

Answer

It is the line where all rays converge

Question 14

How does a concave lens affect parallel rays of light?

Accepted Answer

Diverges them outward

Answer

Converges them to a point

Answer

Reflects them back

Answer

Focuses them to a line

Question 15

Which experiment can demonstrate the focal length of a convex lens?

Accepted Answer

Using a lens to focus sunlight on a piece of paper until it burns

Answer

Observing the magnification of a distant object

Answer

Measuring the angle of refraction through the lens

Answer

Using a lens to project an image on a screen

Ray Diagrams and Lens Equation

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