A four bar mechanism is shown in the figure. The link numbers are mentioned near the links. Input link 2 is rotating anti-clockwise with a constant angular speed ω₂. Length of different links are :

O₂O₄ = O₂A = L,

AB = O₄B = √(2)L.

The magnitude of the angular speed of the output link 4 is ω₄ at the instant when link 2 makes an angle of 90° with O₂O₄ as shown. The ratio ω₄/ω₂ is __________ (round off to two decimal places).