Question

Write the uses of lenses in day - to - day life?

Answer 1

Explanation:

Lenses in many purposes:

1. For concave lenses -

• Concave lenses are used in spectacles to correct defect of vision called myopia or short sightedness.
• Concave lenses are used as eye-lens in Galilean telescope.
• Concave lenses are used in combination with convex lenses to make high quality lens systems for optical instruments.
• Concave lens is used in wide-angle syphole in doors.

2. For convex lenses -

• Convex lenses are used in spectacles to correct defect of vision called hypermetropia or long sightedness.
• Convex lenses are used in simple camera.
• Convex lenses are used in magnifying glass or magnifying lenses (by palmists, watchmakers etc).
• Convex lenses are used in making microscopes, telescopes and slide projectors.

Answer 2

Uses of lenses in day-to-day life are given as follows:

• Uses of concave lenses:

1. Myopia, or short-sightedness, is a vision condition that is addressed by concave lenses in spectacles.
2. It is used in flashlights and to produce a wide beam of light
3. Use as eye-lens in the telescope

• Uses of convex lenses:

1. Convex lenses are used in spectacles to cure hypermetropia, or long-sightedness, a vision issue.
2. Convex lenses are used in basic cameras.
3. Convex lenses are used in magnifying glasses or magnifying lenses
4. Convex lenses are used in microscopes to see an enlarged image of the object