The X-ray beam can be deflected by:

1. Magnetic field 2. Electric field
3. Both 1 and 2 4. None of these
Subtopic:  Electromagnetic Spectrum |
From NCERT
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The energy of the EM wave is of the order of 15 KeV. To which part of the spectrum does it belong?
1. X-rays
2. Infrared rays
3. Ultraviolet rays
4. γ-rays

Subtopic:  Electromagnetic Spectrum |
 56%
From NCERT
NEET - 2015
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Which colour of the light has the longest wavelength?
1. violet
2. red
3. blue
4. green

Subtopic:  Electromagnetic Spectrum |
 87%
From NCERT
NEET - 2019
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Which of the following statements about electromagnetic waves is/are correct:

A. X-rays in vacuum travel faster than light waves in vacuum.
B. The energy of an X-ray photon is greater than that of a light photon.
C. Light can be polarised but X-ray cannot.

1. A and B 
2. B and C
3. A, B and C
4. B only

Subtopic:  Electromagnetic Spectrum |
From NCERT
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Which of the following electromagnetic waves has minimum frequency?
1. Radio waves
2. Infrared waves
3. Microwaves
4. X-rays

Subtopic:  Electromagnetic Spectrum |
 70%
From NCERT
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The shortest wavelength is for 

(1) γ-rays

(2) X-rays

(3) ultraviolet rays

(4) microwaves

Subtopic:  Electromagnetic Spectrum |
 83%
From NCERT
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The electromagnetic radiations are in descending order of wavelength in the following sequences :

(1) infra-red waves, radio waves, X-rays, visible light rays

(2) Radio-waves, infra-red waves, visible light rays, X-rays

(3) Radio waves, visible light rays, infra-red waves, X-rays

(4) X-rays, visible light rays, infra-red wave, radio-waves

Subtopic:  Electromagnetic Spectrum |
 81%
From NCERT
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Which of the following are not electromagnetic waves?

(1) cosmic rays

(2) gamma rays

(3) microwaves

(4) X-rays

Subtopic:  Electromagnetic Spectrum |
 52%
From NCERT
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The wave impedance of free space is

(1) 0 Ω

(2) 376.6 Ω

(3) 1883 Ω

(4) 3776 Ω

Subtopic:  Electromagnetic Spectrum |
 53%
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The frequency 1057 MHz of radiation arising from two close energy levels in hydrogen belongs to

(1) radio waves

(2) infrared waves

(3) micro waves

(4) γ-rays

Subtopic:  Electromagnetic Spectrum |
From NCERT
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