34) Find the missing angles in the given figures:
50°
60%
B=?
(ii)
50 70 x =?
Answers
Answer:
Step-by-step explanation:
Hence x = 50°, y = 50°. (ii) In Fig. (ii),. b = 40° (Angles opposite to equal sides). But a + b + 40° ... (Exterior angle of a triangle is equal to sum of its opposite interior angles). = 50° + 80° = 130° ... 2a + x = 180° ⇒ 2a + 60° = 180°. ⇒ 2a = 180° ...
34-42, initially unpolarized light is sent through three polarizing sheets whose polarizing directions make angles of 0, = 40°, 02 = 20°, and 03 = 40° with the direction of the y axis. What percentage of the light's initial intensity is transmitted by the system? ... Figure 34-43 shows light reflecting from two perpendicular reflecting surfaces A and B. Find the angle between the incoming ray ... 0,. 0, 0, 02 10° 8° 50° 35° 20° 15°30' 60° 40°30' 30° 22°30' 70° 45°30' 40° 29° 80° 50° \ \ \ \ s x / )° 18.