Question

An object is placed perpendicular to the principal axis of a convex lens of focal length 10 cm.If the object is at distance of 15 cm from the lens, then its image will be formed​

Answer 1

Answer:

Below is the correct answer my dear friend :)

Explanation:

From lens formula,

1/v-1/u=1/f

u=15cm

Focal length = 10 cm

1/v=1/10=1/15

1/v= 1/0-1/15= 3-2/30= 1/30

v=30 cm

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Answer 2

Answer:

$from \: lens \: formula$

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

$u = - 15cm$

$focl \: length = 10cm$

$\frac{1}{v} = \frac{1}{10} = \frac{1}{( - 15)}$

$\frac{1}{v} = \frac{1}{10} - \frac{1}{15} = \frac{3 - 2}{30} = \frac{1}{30}$

$v = 30cm$

$i \: hope \: its \: helps \: for \: you$