1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the stopping potential is 5 V lies in the
A
infrared region
B
X-ray region
C
Ultraviolet region
D
Visible region
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
In the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of
A
collisions between the charged particles emitted from the cathode and the atoms of the gas
B
collision between different electrons of the atoms of the gas
C
excitation of electrons in the atoms
D
collision between the atoms of the gas
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
If M(A; Z), Mp and Mn denote the masses of the nucleus $${}_Z^AX,$$ proton and neutron respectively in units of u (1 u = 931.5 MeV/c2) and BE represents its bonding energy in MeV, then
A
M(A, Z) = ZMp + (A $$-$$ Z)Mn $$-$$ BE
B
M(A, Z) = ZMp + (A $$-$$ Z)Mn + BE/c2
C
M(A, Z) = ZMp + (A $$-$$ Z)Mn $$-$$ BE/c2
D
M(A, Z) = ZMp + (A $$-$$ Z)Mn + BE
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Two nuclei have their mass numbers in the ratio of 1 : 3. The ratio of their nuclear densities would be
A
$${\left( 3 \right)^{1/3}}:1$$
B
1 : 1
C
1 : 3
D
3 : 1
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Graduate Aptitude Test in Engineering
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Class 12