Plz ans 1st two questions

Plz ans 1st two questions I. An object is placed at a distance of 20cm from a convex mirror of focal length 25cm. Calculate e position of the image. Discuss its nature. 5. A 2.0cm high object is placed at a distance of 20cm from a spherical mirror which forms a real lage at 40cm from the mirror. Calculate the focal length of the mirror and size of the image. Is the irror converging or diverging. An object of height 2cm is placed at a distance of 1 5 cm from a concave mirror of focal length cm. Draw a scale diagram to locate the image. From the diagram, find the length of image formed.

Dear Student

\frac{1}{v} + \frac{1}{u} = \frac{1}{f} u = - 20 c m f = - 25 c m \frac{1}{v} = \frac{1}{f} - \frac{1}{u} = \frac{- 1}{25} + \frac{1}{20} \frac{1}{v} = \frac{- 4 + 5}{100} v = 100 c m m a g n i f i c a t i o n = - v / u = - 100 / - 20 = + 5 I t i s v i r t u a l e r e c t F o r f u r t h e r q u e r i e s k i n d l y a s k i n a n o t h e r t h r e a d . R E G A R D S