EASY
UPSC CAPF AC Paper - I
IMPORTANT
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Which one of the following has highest frequency?

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Important Questions on Physics

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 3>Q 15
Which of the following electromagnetic wave has the longest wavelength?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 3>Q 16
X-rays are not used for radar purpose, because:
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 3>Q 17
X-rays were discovered by _____.
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 3>Q 18
Which one of the following is not electromagnetic in nature-
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 3>Q 19
Consider the following parts of spectra:
1. Visible 2. Infrared
3. Ultraviolet 4. Microwave
Which of the following is the correct sequence in which the wavelengths increase?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 3>Q 20
Electromagnetic waves can travel through _____.
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 3>Q 21
Who firstly demonstrated experimentally the existence of electromagnetic wave?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 3>Q 22
The patient is asked to drink BaSO4 for examining the stomach by X-rays, because X-rays are