Question

Question: - In He-Ne LASER, the tube is filled with______

Option A: - 10 % He and 90 % Ne Option B: - 20 % He and 80 % Ne

Option C: - 90 % He and 10 % Ne Option D: - 80 % He and 20 % Ne​

Answer 1

Hi friend!

The answer is:

option D

hope this helps yiu

Answer 2

Answer:

Concept:

A helium–neon laser, often known as a He–Ne laser, is a form of gas laser in which the high energy medium gain medium is a mixture of helium and neon in a 10:1 ratio at a total pressure of roughly 1 torr inside a tiny electrical discharge. The most well-known and extensively used He-Ne laser has a wavelength of 632.8 nm, which is in the visible spectrum's red region.

Given:

The tube filled with He-Ne LASER in He-Ne LASER______

[A] - 10 % He and 90 % Ne

[B] - 20 % He and 80 % Ne

[C] - 90 % He and 10 % Ne

[D] - 80 % He and 20 % Ne​

Find:

choose the appropriate answers to the following question

Answer:

The answer is option [D] - 80 % He and 20 % Ne​

The helium–neon gas laser is a four-level continuous gas laser. It is made out of a fused quartz tube that is long and narrow. The tube's diameter will range from 2 to 8 mm, and its length will range from 10 to 100 cm. To obtain polarised laser light, flat quartz panels are sealed at the tube's ends, and the panels are sealed at a Brewster angle with the tube's axis, as shown in Fig. 10.4. As a result, the plates are known as Brewster windows. The tube is filled in a 10:1 ratio with helium and neon gases. Because helium gas has a partial pressure of 1 mm Hg and neon gas has a partial pressure of 0.1 mm Hg, the tension of the mixture is 1 mm Hg.

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