a certain prism is found to produce a minimum deviation of 51 degree while it produces a deviation of 62degree48' for two values of angle of incidence namely 40degree 6' and 82degree42' respectively determine the refractive angle of prism the angle of incidence at minimum deviation and refractive index of the materials of the prism​

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.