Question

Question No. 21
In He-Ne laser the most favourable ratio for helium to neon for satisfactory laser action is
0.04513888888888889
0.044444444444444446
0.04861111111111111
0.4173611111111111​

Answer 1

Answer:

ᴄ ɪꜱ ᴛʜᴇ ᴀɴꜱ ᴍᴀyʙᴇ

ʜᴏᴩᴇ ɪᴛ ʀɪɢʜᴛ

ᴩʟꜱ ᴍᴀʀᴋ ᴍᴇ ᴀꜱ ʙʀᴀɪɴʟɪᴇꜱᴛ

ᴜ ꜰᴏʟʟᴏᴡ ᴍᴇ ᴛʜᴇɴ ɪ ᴡɪʟʟ ꜰᴏʟʟᴏᴡ ᴜ