- 1(current)
Q. No.The frequency order for \(\gamma\text-\)rays (\(b\)), \(X\text-\)rays (\(a\)), and \(UV\text-\)rays (\(c\)) is:
| 1. | \( b>a>c \) | 2. | \( a>b>c \) |
| 3. | \( c>b>a \) | 4. | \( a>c>b\) |
Subtopic: Â Electromagnetic Spectrum |
 81%
From NCERT
AIPMT - 2000
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The EM wave with the shortest wavelength among the following is:
| 1. | Ultraviolet rays | 2. | \(X\)-rays |
| 3. | Gamma-rays | 4. | Microwaves |
Subtopic: Â Electromagnetic Spectrum |
 77%
From NCERT
NEET - 2020
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Subtopic: Â Electromagnetic Spectrum |
 88%
From NCERT
NEET - 2019
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The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is:
| 1. | gamma rays, ultraviolet, infrared, microwaves. |
| 2. | microwaves, gamma rays, infrared, ultraviolet. |
| 3. | infrared, microwave, ultraviolet, gamma rays. |
| 4. | microwave, infrared, ultraviolet, gamma rays. |
Subtopic: Â Electromagnetic Spectrum |
 84%
From NCERT
AIPMT - 2011
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The energy of the EM waves is of the order of \(15~\mathrm{keV}\). To which part of the spectrum does it belong?
1. X-rays
2. Infrared rays
3. Ultraviolet rays
4. \(\gamma\)-rays
Subtopic: Â Electromagnetic Spectrum |
 58%
From NCERT
NEET - 2015
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Match List - I with List - II.
Choose the correct answer from the options given below:
| List -I (Electromagnetic waves) | List - II (Wavelength) | ||
| (a) | AM radio waves | (i) | \(10^{-10}~\text{m}\) |
| (b) | Microwaves | (ii) | \(10^{2} ~\text{m}\) |
| (c) | Infrared radiation | (iii) | \(10^{-2} ~\text{m}\) |
| (d) | \(X\)-rays | (iv) | \(10^{-4} ~\text{m}\) |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (iii) | (iv) | (ii) | (i) |
Subtopic: Â Electromagnetic Spectrum |
 72%
From NCERT
NEET - 2022
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The biological importance of the ozone layer is:
| 1. | it stops ultraviolet rays. |
| 2. | ozone layer reduces the greenhouse effect. |
| 3. | ozone layer reflects radio waves. |
| 4. | ozone layer controls \(\mathrm{O}_2 / \mathrm{H}_2\) ratio in the atmosphere. |
Subtopic: Â Electromagnetic Spectrum |
 85%
From NCERT
AIPMT - 2001
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- 1(current)
Q. No.
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