1
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
A rays of light is incident on a 60o prism at the minimum deviation position. The angle of refraction at the first face (i.e., incident face) of the prism is
A
zero
B
30o
C
45o
D
60o
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
When monochromatic radiation of intensity $$I$$ falls on a metal surface, the number of photoelectrons and their maximum kinetic energy are N and T respectively. If the intensity of radiation is 2$$I$$, the number of emitted electrons and their maximum kinetic energy are respectively
A
N and 2T
B
2N and T
C
2N and 2T
D
N and T
3
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The electron in the hydrogen atom jumps from excited state (n = 3) to its ground state (n = 1) and the photons thus emitted irradiate a photosensitive material. If the work function of the material is 5.1 eV, the stopping potential is estimated to be (the energy of the electron in nth state En = $${{ - 13.6} \over {{n^2}}}eV$$)
A
5.1 V
B
12.1 V
C
17.2 V
D
7 V
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The binding energy per nucleon in deuterium and helium nuclei are 1.1 MeV and 7.0 MeV, respectively. When two deuterium nuclei fuse to form a helium nucleus the energy released in the fusion is
A
23.6 MeV
B
2.2 MeV
C
28.0 MeV
D
30.2 MeV
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