1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
The velocity of electromagnetic wave is parallel to
A
$$\overrightarrow B \times \overrightarrow E $$
B
$$\overrightarrow E \times \overrightarrow B $$
C
$$\overrightarrow E $$
D
$$\overrightarrow B $$
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
What is the cause of Green house effect ?
A
infra-red rays
B
ultra violet rays
C
X-rays
D
radio waves.
3
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 $${d \over 4}$$
4
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
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