Question

some momements of plant are related with growth​

Answer 1

Answer:

here is your answer dear

Power of lens is known as the inverse of the focal length of the lens measured in meter(m). S.I unit of power = Dioptre (D) Power of lense = 1/ focal length in meter. The focal length of 1st lense f1 = 40 cm = 0.4 m. The lense used is a convex lens because the focal length is a positive value.

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have a great day ahead dear

Answer 2

Answer:

good morning brother

Explanation:

thank you