Question

A student uses a lens of focal length -50 cm.what is the nature of the lens and its power??​

Answer 1

Answer:

50/2-- 25

Explanation:

is the lens and its power is 25

Answer 2

Answer:

Newton's three laws of motion may be stated as follows:

1.Every object in a state of uniform motion will remain in that state of motion unless an external force acts on it.

2.Force equals mass times acceleration [ ].

3.For every action there is an equal and opposite reaction.

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