A convex lens has a focal length of 40cm.Calculate its power.
Answers
Answered by
87
Hey user !
So here's u r answer !
↪Focal length -> 40 cm
↪P = 1 / F (in m)
↪P = 1 / 0.4 m
↪P = + 2 . 5D
Hope it is satisfactory !!
_________________________________________
So here's u r answer !
↪Focal length -> 40 cm
↪P = 1 / F (in m)
↪P = 1 / 0.4 m
↪P = + 2 . 5D
Hope it is satisfactory !!
_________________________________________
Answered by
0
The power of the lens is +2.5D.
Given:
A convex lens of 40 cm focal length.
To Find:
Power of the lens.
Solution:
Focal length of the lens is 40 cm
Power is 1/f where focal length is in meter.
Power of lens is 1/0.40 = 2.5 D
Hence, the power of lens is 2.5D.
To learn more about lens visit: https://brainly.in/question/3988360
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