Test # 24
Login/Register to access massive collection of FREE questions and answers.
Login/Register
Login/Register
Quantitative Aptitude
Quiz Index
1300 questions in 130 tests. Each test contains 10 questions.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
Idiom of the Day
pack a punch/wallop
to provide a burst of energy or power or excitement
The storm packed a wallop and did much damage to the boats.
Simple Science
The Window Pane
Refraction:We have seen that light is bent when it passes from one medium to another of different density, and that objects viewed by refracted light do not appear in their proper positions.
When a ray of light passes through a piece of plane glass, such as a window pane, it is refracted at the point B toward the perpendicular, and continues its course through the glass in the new direction BC. On emerging from the glass, the light is refracted away from the perpendicular and takes the direction CD, which is clearly parallel to its original direction. Hence, when we view objects through the window, we see them slightly displaced in position, but otherwise unchanged. The deviation or displacement caused by glass as thin as window panes is too slight to be noticed, and we are not conscious that objects are out of position.
FIG. - Objects looked at through a window pane seem to be in their natural place.