Question Statement:
A particle of mass m and energy E, moving in the positive x direction, is incident on a step potential
at x = 0, as indicated in the figure. The height of the potential is V0, where V 0 > E. At
0 where ,00 x x x , the probability of finding the electron is 1 /e times the probability of finding
it at x = 0. If 2
0 ) ( 2
E V m , the value of x0 is
(A)
2 (B)
1 (C)
2
1 (D)
4
1
END OF THE QUESTION PAPER
x = x0
V0
E
x = 0
Q. No Type Section Key Marks
1 MCQ GA B 1
2 MCQ GA A 1
3 MCQ GA D 1
4 MCQ GA C 1
5 MCQ GA B 1
6 MCQ GA C 2
7 MCQ GA C 2
8 MCQ GA C 2
9 MCQ GA A 2
10 MCQ GA C 2
1 MCQ PH D 1
2 MCQ PH C 1
3 MCQ PH C 1
4 NAT PH 0 : 0 1
5 MCQ PH A 1
6 MCQ PH B 1
7 NAT PH 4 : 4 1
8 NAT PH 0.25 : 0.25 1
9 NAT PH 0.5 : 0.5 1
10 MCQ PH A 1
11 NAT PH 2 : 2 1
12 MCQ PH A 1
13 NAT PH 9 : 9 1
14 MCQ PH C 1
15 MCQ PH A 1
16 MCQ PH B 1
17 NAT PH 1.72 : 1.74 1
18 NAT PH 400 : 400 1
19 NAT PH 2.41 : 2.49 1
20 MCQ PH B 1
21 MCQ PH B 1
22 MCQ PH A 1
23 NAT PH 2 : 2 1
24 NAT PH 2 : 2 1
25 MCQ PH C 1
26 MCQ PH D 2
27 NAT PH 12 : 12 ; 6 : 6 2
28 MCQ PH C 2
29 MCQ PH B 2
30 NAT PH 24 : 24 2
31 NAT PH 80 : 80 2
32 MCQ PH D 2
33 MCQ PH B 2
34 MCQ PH C 2
35 NAT PH 26.65 : 26.68 2
36 MCQ PH A 2
37 NAT PH 0.40 : 0.42 2
38 MCQ PH C 2
39 NAT PH 0.20 : 0.24 2
40 MCQ PH D 2
41 NAT PH 18 : 18 2
42 MCQ PH A 2
43 NAT PH 4 : 4 2
44 MCQ PH B 2
45 MCQ PH A 2
46 MCQ PH D 2
47 NAT PH 1.40 : 1.45 2
48 MCQ PH D 2
49 MCQ PH D 2
50 MCQ PH C 2
51 MCQ PH B 2
52 NAT PH 5.5 : 5.9 2
53 NAT PH 0.27 : 0.29 2
54 MCQ PH B 2
55 MCQ PH C 2