The refractive index of water as measured by the relation `p = (Real depth)/ (Apparent depth) was found to have the values 1.29, 1.33, 1.34, 1.35, 1.32, 1.36, 1.30, 1.33. Calculate mean value of p.

The refractive index of water as measured by the relation mu = ("Real depth")/("Apparent depth") was found to have the values 1.29 , 1.33 , 1.34 , 1.35 , 1.32 , 1.36 , 1.30 , 1.33 . Calculate (i) mean value of mu (ii) mean value of absolute error (iii) relative error (iv) percentage error .

The refractive index of water measured by the relation m = (real depth)/ (apparent depth) is found to have values of 1.34, 1.38, 1.32 and 1.36, the mean value of refractive index with percentage error is

Repeated observations in an experiment gave the values 1.29 , 1.33 , 1.34 , 1.35 , 1.32 , 1.36, 1.30, and 1.33 . Calculate the mean value, absolute eror , relative error, and percentage error.

The refractive index of water is 1.33. What will be the speed of light in water

The refractive index of water is 1.33. The direction in which a man under water should look to see the setting sun is

If the refractive index of water with respect to air is 1.33 and of that of glass with respect to air is 1.5 then

If refractive index of glass is 1.50 and of water is 1.33, then criticle angle is

The appropriate value of P for the relation (P! + 1) = (P + 1)^2 is :