1
AIEEE 2004
MCQ (Single Correct Answer)
+4
-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
A
$$60$$ $$cm$$
B
$$30$$ $$cm$$
C
$$20$$ $$cm$$
D
$$80$$ $$cm$$
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-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 169 English
A
$$n > {1 \over {\sqrt 2 }}$$
B
$$n > \sqrt 2 $$
C
$$n < {1 \over {\sqrt 2 }}$$
D
$$n < \sqrt 2 $$
3
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
To get three images of a single object, one should have two plane mirrors at an angle of
A
$${60^ \circ }$$
B
$${90^ \circ }$$
C
$${120^ \circ }$$
D
$${30^ \circ }$$
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
The image formed by an objective of a compound microscope is
A
virtual and diminished
B
real an diminished
C
real and enlarged
D
virtual and enlarged
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