Question

plz do THIS question plz plz plz​

Answer 1

this is ur answer......

Answer 2

SOLUTION TO YOUR QUESTION:

$u = - 15 \: cm \\ m = - 2 \: cm \\ as \: we \: know \: that \: m = \frac{v}{u}$

Therefore:-

$- 2 = \frac{v}{ - 15}$

so: v = 30cm---------(a)

By lens formula:-----

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

$so \: \frac{1}{f} = \frac{1}{30} - ( \frac{1}{ - 15} ) \\ \frac{1}{f} = \frac{1}{30} + \frac{1}{15} = \frac{1}{10}$

therefore:- f = 10cm----------(b)

Distance of image from the lens= 30cm

From (a) and (b):-

Image is formed beyond 2f

HOPE IT HELPS YOU........