1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Biological inportance of ozone layer is
A
it stops ultraviolet rays
B
ozone layer reduces green house effect
C
ozone layer reflects radio waves
D
ozone layer controls O2/H2 ratio in atmosphertte.
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
The frequency order for $$\gamma $$-rays (a), X-rays (b), UV rays (c) is
A
b $$>$$ a $$>$$ c
B
a $$>$$ b $$>$$ c
C
c $$>$$ b $$>$$ a
D
a $$>$$ c $$>$$ b
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Graduate Aptitude Test in Engineering
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Class 12