For a glass plate transitivity and reflectivity are specified as $$0.86$$ and $$0.08$$ respectively, the absorptivity of the glass plate is

For the fluid flowing over a flat plate with Prandtle number greater than unity, the thermal boundary layer for laminar forced convection

If the load on a ball bearing is reduced to half, the life of the ball bearing will

For full depth of involute spur gears, minimum number of teeth of pinion to avoid interference depends upon