AIEEE 2005 | Geometrical Optics Question 185 | Physics

A thin glass (refractive index $$1.5$$) lens has optical power of $$-5$$ $$D$$ in air. Its optical power in a liquid medium with refractive index $$1.6$$ will be

$$-1$$ $$D$$

$$1$$ $$D$$

$$-25$$ $$D$$

$$25$$ $$D$$

AIEEE 2004

MCQ (Single Correct Answer)

-1

A plano convex lens of refractive index $$1.5$$ and radius of curvature $$30$$ $$cm$$. Is silvered at the curved surface. Now this lens has been used to form the image of an object. At what distance from this lens an object be placed in order to have a real image of size of the object

$$60$$ $$cm$$

$$30$$ $$cm$$

$$20$$ $$cm$$

$$80$$ $$cm$$

AIEEE 2004

MCQ (Single Correct Answer)

-1

A light ray is incident perpendicularly to one face of a $${90^ \circ }$$ prism and is totally internally reflected at the glass-air interface. If the angle of reflection is $${45^ \circ }$$, we conclude that the refractive index $$n$$ AIEEE 2004 Physics - Geometrical Optics Question 167 English