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44 questions
21
Wave motion
Moderate
+1.0
-0.25
Which one is not an example of electromagnetic wave?
22
Wave motion
Moderate
+1.0
-0.25
Which one of the following has the longest wavelength ?
23
Wave motion
Moderate
+1.0
-0.25
Which one of the following electromagnetic radiations has the maximum energy?
24
Wave motion
Moderate
+1.0
-0.25
Consider the following and arrange these in increasing order of frequency : I. X-rays II. Visible rays III. Infrared rays IV. Radio waves Select the correct answer using the code given below : Code :
25
Wave motion
Moderate
+1.0
-0.25
Microwaves are electromagnetic waves having frequencies in range of :
26
Wave motion
Moderate
+1.0
-0.25
Which one of the following is used for determining the structure of crystal ?
27
Wave motion
Moderate
+1.0
-0.25
A radar which detects the presence of an enemy aircraft uses :
28
Wave motion
Moderate
+1.0
-0.25
Remote Sensing uses which of the following in its applications?
29
Wave motion
Moderate
+1.0
-0.25
When there is depletion of ozone in the stratosphere, the wavelength of radiation striking the Earth's surface will be :
30
Wave motion
Moderate
+1.0
-0.25
Which one of the following types of waves are used in a Night Vision apparatus?