Question

a object of height 10 cm is placed at 50cm in front of convex lens of focal length of 20cm find ppsition and size of image fotmed draw ray diagram plspls

Answer 1

Answer:

Height of object = 10 cm

Object Distance = -50 cm

Focal length = 20 cm

1/v - 1/u = 1/f

1/v - 1/(-50) = 1/20

1/v = 1/20 - 1/50

1/v = 3/100

v = 33.33 cm

so, position of image is between F and 2F

Magnification (M) = V/U

= 33.33/(-50)

M = -0.67

also, Magnification

(M) = height of image ------------------------------------

height of object

M = height of image/10

0.67 = H/10

H = 6.7 cm

Ray diagram is given above in the image

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Answer 2

Answer:

Explanation:

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