In a He-Cd laser, a resonator is made by a convex mirror of radius R_(1)=-1.25m and a concave
mirror of radius R_(2)=1.85m. The maximum possible separation for stable resonator would be
(a) 3.1m
(b) 600cm
(c) 60cm
(d) 1.48m
In a He-Cd laser,a resonator is made by a convex mirror of radius R=-1.25m and a concave mirror of radiusR=1.85 m.The maximum possible separation for stable resonator would be (a) 3.1 m (b) 600cm (c) 60cm (d) 1.48m
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