The power of a concave lens is:
ANotional
BNominal
CNegative
DNormative
Answer & Solution
Correct answer: C. Negative
1. A convex lens carries the opposite sign.
2. The concave lens diverges light.
3. Its power is negative.
_Source: NCERT Class 10 Science, Ch 10 'Light - Reflection and Refraction'_
Related questions
Who prescribes corrective lenses by stating their powers?The power of a convex lens is:One dioptre is the power of a lens whose focal length is:The SI unit of the power of a lens is the:The power of a lens is represented by which letter?The power of a lens is defined as the reciprocal of its:The centres of the spheres forming a lens are called centres of:How many spherical surfaces does a lens have?