1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. According to Bohr's theory, the spectral lines emited by hydrogen will be
A
one
B
two
C
three
D
four
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A tube of length L is filled completely with an incompressible liquid of mass M and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity $$\omega $$. The force exerted by the liquid at the other end is
A
$${{M{L^2}{\omega ^2}} \over 2}$$
B
$${{ML{\omega ^2}} \over 2}$$
C
$${{M{L^2}\omega } \over 2}$$
D
$$ML{\omega ^2}$$
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Two bodies A (of mass 1 kg) and B (of mass 3 kg) are dropped from heights of 16 m and 25 m, respectively. The ratio of the time taken by them to reach the ground is
A
4/5
B
5/4
C
12/5
D
5/12
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A particle moves along a straight line OX. At a time t (in seconds) the distance x (in metres) of the particle from O is given by x = 40 + 12t $$-$$ t3. How long would the particle travel before coming to rest ?
A
16 m
B
24 m
C
40 m
D
56 m