Find the surface tension at critical velocity?
If mutual inductance M=3H, L1=4H, L2=9H, will the coupling coefficient be equal?
Two point charges q1 and q2 are ‘l’ distance apart. If one of the charges is doubled and distance between them is halved, the magnitude of force becomes n times, where n is
What is the density of water in kgdm–3 if its density in gcm–3 is 0.863?
To a bird in air, a fish in water appears to be at 30 cm from the surface. If refractive index of water with respect to air is \(\frac {4}{3}\) ,the real distance of bird from the surface is