Question

find the power of a lens of focal length 2m​

Answer 1

Power = 1/Focal Length

= 1/(2 m)

= 0.5 Diopter

Power of lense is 0.5 Diopter

Answer 2

Heya. ..... here is your answer

# we know that P = 1/f ( f = focal length)

# Here focal length is given as 2m

# Now put the value of f in the formula.

# P = 1/2

# P = 0.5 dioptre

Hope it helps you.

Thank you.