1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
An equiconvex lens is cut into two halves along (i) XOX' and (ii) YOY' as shown in the figure. Let $$f,f',$$ $$f''$$ be the focal lengths of the complete lens, of each half in case (i), and of each half in case (ii), respectively.

Choose the correct statement from the following

AIPMT 2003 Physics - Geometrical Optics Question 38 English
A
$$f' = f,f'' = 2f$$
B
$$f' = 2f,f'' = f$$
C
$$f' = f,f'' = f$$
D
$$f' = 2f,f'' = 2f$$
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
A bulb is located on a wall. Its image is to be obtained on a parallel wall with the help of convex lens. The lens is placed at a distance d ahead of second wall, then required focal length will be
A
only $${d \over 4}$$
B
only $${d \over 2}$$
C
more than $${d \over 4}$$ but less than $${d \over 2}$$
D
less than $${d \over 4}$$
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye. The wavelength of light is 5000 $$\mathop A\limits^ \circ $$
A
2.32 m
B
4.28 mm
C
1.25 cm
D
12.48 cm
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
For the given incident ray as shown in figure, the condition of total internal refraction of this ray the required refractive index of prism will be

AIPMT 2002 Physics - Geometrical Optics Question 34 English
A
$${{\sqrt 3 + 1} \over 2}$$
B
$${{\sqrt 2 + 1} \over 2}$$
C
$$\sqrt {{3 \over 2}} $$
D
$$\sqrt {{7 \over 6}} $$
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