9. 1 points HRW9 34.P.043. My Notes Ask Your Teacher A movie camera with a (sing

Question

9. 1 points HRW9 34.P.043. My Notes Ask Your Teacher A movie camera with a (single) lens of focal length 63 mm takes a picture of a person standing 26 m away. If the person is 179 cm tall, what is the height of the image of the person on the film? Read the eBook Section 34-7 Thin Lenses 10. /1 points HRW9 34.P.047.ssm My Notes Ask Your Teacher A double-convex lens is to be made of glass with an index of refraction of 1.5. One surface is to have twice the radius of curvature of the other and the focal length is to be 62 mm. What is the larger radius of curvature? Read the eBook Section 34-7 Thin Lenses

Explanation / Answer

using lens formula

1/f = 1/di + 1/do

1/di = 1/(63*10^(-3)) - 1/26

di = 63.15 mm

hi = (di/do)*ho = (63.15*10^(-3)/26)*179 = 0.4347 cm = 4.347 mm

10)

using formula

1/f = (n-1)(1/R1 + 1/R2)

here R1 = R and R2 = 2*R

1/(62*10^(-3)) = (1.5 - 1)*(1/R + 1/2R)

R = (0.5)*(3/2)*(62*10^(-3)) = 0.0465 m = 46.5 mm

larger radius = 2*R = 93 mm

Related Questions

Navigate

• Browse (All)
• Browse 9
• Subjects

---

---

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