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44 questions
1
Wave motion
Moderate
+1.0
-0.25
Which of the following is a mechanical wave?
2
Wave motion
Moderate
+1.0
-0.25
An example of longitudinal wave is:
3
Wave motion
Moderate
+1.0
-0.25
Sound wave in air is—
4
Wave motion
Moderate
+1.0
-0.25
What do we call the distance between two consecutive compressions of a sound wave?
5
Wave motion
Moderate
+1.0
-0.25
In a Sitar, which type of sound vibrations are produced?
6
Wave motion
Moderate
+1.0
-0.25
Long radio waves are reflected by which of the following layer of Earth's surface--
7
Wave motion
Moderate
+1.0
-0.25
Wireless communication is reflected back to the earth's surface by the—
8
Wave motion
Moderate
+1.0
-0.25
Which of the following atmospheric layers is responsible for the deflection of radiowaves?
9
Wave motion
Moderate
+1.0
-0.25
Waves of the Ultra High Frequency (UHF) range normally propagate in means of—
10
Wave motion
Moderate
+1.0
-0.25
Which of the following cannot travel in vacuum?