Question

First dispone 09 Now follow this procedure (Look at my sketch above) 1. Hold the divider in your left hand, stretch the left arm so that the divider is at a distance r from your face. 2. Align the left tip of the divider so that it is in line with the first distant object used in the exercise above. See first distance object above. 3. Move the right part of the divider so that its tip is in line with the second distant object. See the second distant object above. 4. Ask your friend to measure the distance between your face and the divider. You may use a piece of rope for this distance and use the ruler to measure its length in meter (m). Record this distance asr in meter. 5. r = .......... m 6. Now use the ruler to measure the distance between the tips of the divider in meter (m) and record this as d. 7. d= ......... 8. Calculate the angle a the object subtends in your eye as a 9. Measure the distance between points A and B and record it aslm 10. L .......... 11. Calculate the distance of the object from your position as R- 12. Record all these values in the table below. Now ask your friend to repeat what you did and measure distances d,, Land R. use these values to calculate a and R Person d(m) L (m) ( m a rad rad Student Partner

Answer 1

faces divider 0. 20 Pegson 1 r = 0.49 mts. -dist bet d = 0.10 m x = d. 0.10 T = 0.49 en a=0.20 rad L=1.96 mte. R- £1, : R=4.8/ rad. Person 2 &=0.53 mtr da o.lomte. 2 0 .10 - - 0.53 &= 0.18 L= 1.96m. Ražava : TR= 10.8 I rad O . 10.8 +9.8 Aug. of R = 10,8 +9,8 = 10.3 rad - 10.3t