Convex Lens Part 2 Quiz

Convex Lens Part 2 Quiz continues the journey into optics by blending learning with an interesting piece of trivia. In the 1600s, Dutch spectacle maker Hans Lippershey is credited with creating the first practical telescope by cleverly arranging convex lenses. His design was so simple that children playing with lenses had already stumbled upon similar effects. Yet, his version opened the sky to human eyes in a new way, allowing distant objects to appear closer than ever before. It is fascinating to imagine that such a small invention could influence astronomy so deeply. This trivia on convex lens prepares you for basic concepts like focal length, power of a lens, and even which type of image is produced by a magnifying glass.

Convex Lens Part 2

On what does the focal length of a convex lens depend?

Distance of object

Shape of lens and refractive index

Color of object

Size of eye

What is the formula relating object distance (u), image distance (v), and focal length (f)?

v – u = f

f = v × u

f = v/u

1/f = 1/v + 1/u

Which type of image is produced by a magnifying glass?

Real, inverted, diminished

Virtual, erect, magnified

Same size

Real, same size at focus

Convex lens can correct which eye defect?

Myopia

Astigmatism

Color blindness

Hypermetropia

What is the formula for magnification of a lens?

v/u

u/v

f/u

f/v

What is the dimensional unit of focal length?

Meter

Joule

Hertz

Watt

What is the power of a lens is measured in?

Meter

Watt

Dioptre

A convex lens forms real and inverted images except when the object is placed:

Beyond 2F

Between optical center and F

At F

At infinity

What is the power of a convex lens with a 50 cm focal length?

1 D

0.5 D

4 D

2 D

When two convex lenses are placed in contact, the effective focal length:

Decreases

Increases

Becomes zero

Infinite

Your score is

The average score is 0%

Sample Questions from This Quiz

On what does the focal length of a convex lens depend?
What is the formula relating object distance (u), image distance (v), and focal length (f)?
Which type of image is produced by a magnifying glass?
Convex lens can correct which eye defect?
What is the formula for magnification of a lens?

Try the full quiz and see how many of these you can answer!