Question
Which statement is correct regarding the propagation of
sound and light in different mediums? I. Sound travels faster in water than in air. II. Light travels faster in water than in air.Solution
Sound waves travel faster in water than in air due to the closer proximity of water molecules, allowing vibrations to be transmitted more quickly. However, light slows down when it passes from air into water because water has a higher optical density than air, reducing the speed of light. This phenomenon is crucial in various optical applications, including lenses and prisms.
Find the wrong number in the series.
2, 4, 12, 10, 30, 16, 564, 11, 24, 46, 74, 109
Find the wrong number in the given number series.
- 71, - 7, 43, 78, 103, 119
16,22,30,45,52,66
6Â Â Â 9Â Â Â 14Â Â Â Â 22Â Â Â Â 30Â Â Â Â Â 41Â Â Â Â Â
...32, 48, 72, 108, 162, 248
Find the wrong number in given number series.
1490, 1377, 1294, 1211, 1138, 1075Â Â Â Â
100, 75, 59, 55, 46, 45
Find the wrong number in the given number series.
17, 36, 73, 134, 220, 352Â
 16, 19, 28, 44, 76, 140, 268
Relevant for Exams:
