Question

taking the speed of sound of water to be 1500 metre per second calculate the minimum distance of the reflector in water to hear the echo distinctly​

Answer 1

Explanation:

Dear Parents of Classes VI to VIII,

PA.2 examination is beginning for your wards from 15th December. Kindly ensure that they attend these tests regularly and with sincerity. Rather than being only concerned about getting good marks, they ought to focus on gaining some useful knowledge. You are requested to supervise as much as you can, that they take the tests sincerely.

More than ever, the responsibility of shaping your child's growth in knowledge is upon you. Only by working together, can we ensure that our students do well in learning as well as in the Final examinations.

Bro.Albert Abraham

Principal

Answer 2

Blood pressure increases with increasing cardiac output, peripheral vascular resistance, volume of blood, viscosity of blood and elasticity of vessel walls. . . . .