Exams › SSC CGL (Prelims) › General

A person needs spectacles with a power of -2.5 D. This indicates that the person is suffering from:

1. Hypermetropia and needs a converging lens
2. Myopia and needs a diverging lens
3. Presbyopia and needs a bifocal lens
4. Astigmatism and needs a cylindrical lens

Correct answer: Myopia and needs a diverging lens

Solution

A negative power indicates a diverging or concave lens. Such lenses are used to correct myopia, where distant objects appear blurred.

Related SSC CGL (Prelims) General questions

• Why are footballs generally spherical in shape?
• When light travels from water to air, which property remains unchanged?
• Difficulty in starting or stopping the motion of a body is due to:
• The bending of sound waves around obstacles is known as:
• Why does food cook faster in a pressure cooker?
• Why are modern tennis rackets commonly made with graphite composites?

⚔️ Practice SSC CGL (Prelims) General free + battle 1v1 →