According to IS 456:2000, a beam shall be deemed to be a deep beam when the ratio of effective span to overall depth is less than _____ for a continuous beam.

Which of the following represents the approximate lap length required for 20 mm diameter bars under flexural tension according to IS 456:2000 (taking minimum lap length as 30φ)?

As per IS 456:2000, the maximum compressive strain in concrete in axial compression is taken as: