1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
X(n, $$\alpha $$) $${}_3^7$$Li, then X will be
A
$${}_5^{10}$$ B
B
$${}_5^9$$ B
C
$${}_5^{11}$$ Be
D
$${}_2^4$$ He.
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
The energy of hydrogen atom in nth orbit is En then the energy in nth orbit of singly ionised helium atom will be
A
4En
B
En/4
C
2En
D
En/2
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
With what velocity should a particle be projected so that its height becomes equal to radius of earth?
A
$${\left( {{{GM} \over R}} \right)^{1/2}}$$
B
$${\left( {{{8GM} \over R}} \right)^{1/2}}$$
C
$${\left( {{{2GM} \over R}} \right)^{1/2}}$$
D
$${\left( {{{4GM} \over R}} \right)^{1/2}}$$
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A particle is thrown vertically upward. Its velocity at half of the height is 10 m/s, then the maximum height attained by it (g = 10 m/s2)
A
8 m
B
20 m
C
10 m
D
16 m