Question

read any story book and write about the character you like the most​

Answer 1

Answer:

THAT'S A DO IT YOURSELF QUESTION

Explanation:

SO DO IT YOURSELF

Answer 2

Answer:

Focal length of the convex lens (f) = 5 cm

Image distance (u) = 20 cm

Let the object distance from the lens be u.

Now, using the lens formula:

\frac{1}{v} -\frac{1}{u}= \frac{1}{f}

v

1

−

u

1

=

f

1

\frac{1}{u} =\frac{1}{20} -\frac{1}{5}

u

1

=

20

1

−

5

1

\frac{1}{u} = \frac{1 - 4}{20}

u

1

=

20

1−4

u = -\frac{20}{3}u=−

3

20

cm

u = - 6.33 cm

Hence, the object should be kept 6.33 cm in front of the lens.