What is the primary difference between the Geodimeter and Tellurometer in terms of distance measurement?
- AGeodimeter uses sound waves while Tellurometer uses light waves
- BGeodimeter uses light waves and Tellurometer uses microwavesCorrect
- CGeodimeter measures angles while Tellurometer measures distances
- DGeodimeter measures distances while Tellurometer measures angles
Solution
Concept
Comparison between Geodimeter and Tellurometer instruments
Formula
NONE
Step-by-step solution
1. Geodimeter and Tellurometer are both electronic distance measuring (EDM) instruments. 2. The Geodimeter measures distance using visible or light waves, whereas the Tellurometer utilizes microwaves. Answer: B
Explanation
The Geodimeter and Tellurometer are both early electronic distance measurement instruments, but they utilize different electromagnetic waves. The Geodimeter operates by transmitting modulated light waves or laser beams to measure distance, whereas the Tellurometer uses high-frequency radio waves or microwaves. Consequently, option B correctly states the primary difference between these two instruments.
Why the other options are wrong
A) Geodimeter uses light waves (modulated visible/infrared light), not sound waves. C) Both instruments are used for measuring distances, not angles. D) Both Geodimeter and Tellurometer measure distances, not angles.
Shortcut
Geodimeter = Light waves; Tellurometer = Microwaves.
Common mistake
Selecting option A by assuming the Geodimeter or Tellurometer uses sound waves instead of light waves and microwaves.
Correct answer: B) Geodimeter uses light waves and Tellurometer uses microwaves