Question

Multiple lenses

An object is 15 cm to the left of a positive lens of focal length 15 cm. A second positive lens of focal length 15 cm is 20 cm to the right of the first length. Where is the final image ?

explain please

*Question 229: Multiple Lens An object is 15 cm to the left of a positive lens of focal lengur cm to the right of the first lens. Where is the final image? Select one: a. 15 cm to the right of the second lens. b. 15 cm to the left of the second lens c. 15 cm to the right of the first lens. d. At infinity e. 20 cm to the right of the second lens. The correct answer is: 15 cm to the right of the second lens.

Answer 1

Thank you

Page No. Date (because it is in lety sides for est lens u=-15cm f = 15cm V = ? by lens formula I-1 V= 0 cm V-G image ) due to first lens will be at infinity image due to gst lens, will work as object of the and lene le. Now u= socm fo=15cm V = ? by lens formula to po 5cm / The final image will be formed at the right side istom of the second Lens, . comes positive shows that it formed in right side.