Please help me with these questions. Thank you. PRE-LAB QUESTIONS 1. A lens is p

Question

Please help me with these questions. Thank you.

PRE-LAB QUESTIONS 1. A lens is placed 15 cm from the lamp, and the image is observed 32 cm from the lamp. a. What is the object distance? (See Figure 1, noting that the object in this case is the lamp). at is the image distance (the distance from the lens to the image, remembering to subtract the lens-to-lamp distance)? c. What is the focal length of the lens from Equation 1, the lens equation? d. What is the expected magnification from Equation 2? A second lens, with f-5 cm, is placed 40 cm from the lamp. e. What is the distance s, between the two lenses? (See Figure 5)

Explanation / Answer

1.
a)
do = 15 cm

b)
di = 32-15 = 17 cm

c)
use:
1/f = 1/di + 1/do
1/f = 1/17 + 1/15
f = 8 cm

d)
|m| = |di/do| = 17/15 = 1.13

I am allowed to answer only 4 parts at a time

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.