Real object means that the object is actually present at the point where the incident ray originates. `(True//False)`

Objective function of LPP is a relation between the decision variables. (True/False)

Heat is not an object in a body. True or False ?

The objects which twinkle in the sky are planets. true/ false

A convex lens produces a real image double the size of the object, when the object is placed at a distance 18 cm from it. Where should the object be placed to produce a real image three times the size of the object?

The weight of an object is more at equator as compared to that at polar region. True/ False?

A ray of light is incident on a glass slab at grazing incidence. The refractive index of the material of the slab is given by mu=sqrt((1+y) . If the thickness of the slab is d=2m , determing the equation of the trajectory of the ray inside the slab and the coordinates of the point where the ray exits from the slab. Take the origin to be at the point of entry of the ray.

A ray of light is incident on a glass slab at grazing incidence. The refractive index of the material of the slab is given by mu =sqrt(1+sqrty) . If the thickness of the slab is d, determine the equation ofthe trajectory of the ray inside the slab and the coordinates of the point where the ray exits from the slab. Take the origin to be at the point of entry of the ray.

Heat is not any object. True/False. Mention it.