1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
Hydrogen atom in ground state is excited by a monochromatic radiation of $$\lambda $$ = 975 $$\mathop A\limits^ \circ $$. Number of spectral lines in the resulting spectrum emitted will be
A
3
B
2
C
6
D
0 10
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
The given graph represents V-I characteristic for a semiconductor device.

AIPMT 2014 Physics - Semiconductor Electronics Question 98 English

Which of the following statement is correct ?
A
It is V-I characteristic for solar cell where, point A represents open circuit voltage and point B short circuit current.
B
It is for a solar cell and popints A and B represent open circuit voltage and current, respectively.
C
It is for a photodiode and points A and B represent open circuit voltage and current, respectively.
D
It is for a LED and points A and B represent open circuit voltage and short circuit current, respectively.
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
Copper of fixed volume V is drawn into wire of length $$l$$. When this wire is subjected to a constant force F, the extension produced in the wire is $$\Delta $$$$l$$. Which of the following graphs is a straight line ?
A
$$\Delta $$$$l$$ versus 1/$$l$$
B
$$\Delta $$$$l$$ versus $$l$$2
C
$$\Delta $$$$l$$ versus 1/$$l$$2
D
$$\Delta $$$$l$$ versus $$l$$
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
A projectile is fired from the surface of the earth with a velocity of 5 m s$$-$$1 and angle $$\theta $$ with the horizontal. Another projectile fired from another planet with a velocity of 3 m s$$-$$1 at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth. The value of the acceleration due to gravity on the planet is (in m s$$-$$2) is
(Given g = 9.8 m s$$-$$2)
A
3.5
B
5.9
C
16.3
D
110.8
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