a lens has power -5d then the nature and focal length of the lens is
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SPJ3Answer:
f = -0.2 metre and nature of lens is concave lens (diverging)
Explanation:
Given the power of the lens = -5 Dioptre
Formula =
Power = 1/focal length
-5=1/f
f = -1/5
f = -0.2 metre
Focal length of the lens is -0.2 m and lens is concave lens and the nature of the lens is diverging since focal length is in negative.
WHAT IS A DIVERGING LENS ?
A diverging lens is a lens that diverge a parallel beam of rays after refraction through it. It forms a virtual image. It has a negative focal length. Concave lens is a diverging lens.
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