1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The refractive index of a glass is $$1.520$$ for red light and $$1.525$$ for blue light. Let $${D_1}$$ and $${D_2}$$ be angles of minimum deviation for red and blue light respectively in a prism of this glass. Then,
A
$${D_1} < {D_2}$$
B
$${D_1} = {D_2}$$
C
$${D_1}$$ can be less than or greater than $${D_2}$$ depending upon the angle of prism
D
$${D_1} > {D_2}$$
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The threshold frequency for a metallic surface corresponds to an energy of $$6.2$$ $$eV$$ and the stopping potential for a radiation incident on this surface is $$5V.$$ The incident radiation lies in
A
ultra-violet region
B
infra-red region
C
visible region
D
$$x$$-ray region
3
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
An alpha nucleus of energy $${1 \over 2}m{v^2}$$ bombards a heavy nuclear target of charge $$Ze$$. Then the distance of closest approach for the alpha nucleus will be proportional to
A
$${v^2}$$
B
$${1 \over m}$$
C
$${1 \over {{v^2}}}$$
D
$${1 \over {Ze}}$$
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The time taken by a photoelectron to come out after the photon strikes is approximately
A
$${10^{ - 4}}\,s$$
B
$${10^{ - 10}}\,s$$
C
$${10^{ - 16}}\,s$$
D
$${10^{ - 1}}\,s$$
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