Kính Lúp - Bài Tập Khoa Học

What is a magnifying glass used for?

• Weighing heavy objects

• Measuring the length of objects

• Observing small objects

• Drawing detailed images

What is the main part of a magnifying glass?

• Diverging lens

• Converging lens

• Flat mirror

• Prism

When using a magnifying glass, to see the object clearly, one should:

• Place the magnifying glass as far from the object as possible

• Align the magnifying glass and the object parallel to the light

• Place the eye close to the glass, moving it to see clearly

• Tilt the glass to see a wider angle

What is a common application of a magnifying glass in life?

• Watching TV

• Playing sports

• Reading small text or examining small details

• Baking

If an object is placed too far from the magnifying glass, how will the image appear?

• Clearer

• Smaller and blurry

• Unchanged

• More prominent