Laser beams are used to measure long distance because

Laser beams are used to measure long distance because

Options

(a) they are monochromatic
(b) they are highly polarised
(c) they are coherent
(d) they have high degree of parallelism

Correct Answer:

they have high degree of parallelism

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. The number of photons of wavelength of 540 nm emitted per second by an electric bulb
  2. A body is thrown upward from ground covers equal distances
  3. A current of 2A flows through a 2Ω resistor when connected across a battery
  4. An objective moves ,starting from rest through a resistive medium
  5. In old age arteries carrying blood in the human body become narrow resulting