Q. No.To which region of the electromagnetic spectrum does the frequency \(1~\text{GHz}\) correspond?
| 1. | Ultraviolet rays | 2. | Radiowaves |
| 3. | Visible radiation | 4. | X-rays |
Subtopic: Electromagnetic Spectrum |
54%
From NCERT
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Which physical quantity does not change in vacuum for \(X\text-\)rays?
1. speed of light
2. wavelength
3. frequency
4. none of these
1. speed of light
2. wavelength
3. frequency
4. none of these
Subtopic: Electromagnetic Spectrum |
From NCERT
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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: Electromagnetic Spectrum |
77%
From NCERT
NEET - 2020
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Match List–I with List–II.
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | UV rays | (i) | Diagnostic tool is medicine |
| (b) | X-rays | (ii) | Water purification |
| (c) | Microwave | (iii) | Communication, Radar |
| (d) | Infrared wave | (iv) | Improving visibility on foggy days |
| 1. | (a)–(iii), (b)-(ii), (c)-(i), (d)-(iv) |
| 2. | (a)–(ii), (b)-(i), (c)-(iii), (d)-(iv) |
| 3. | (a)–(ii), (b)-(iv), (c)-(iii), (d)-(i) |
| 4. | (a)–(iii), (b)-(i), (c)-(ii), (d)-(iv) |
Subtopic: Electromagnetic Spectrum |
85%
From NCERT
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Subtopic: Electromagnetic Spectrum |
88%
From NCERT
NEET - 2019
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The electromagnetic radiation which has the smallest wavelength is:
1. X-rays
2. Gamma rays
3. Ultraviolet rays
4. Microwaves
1. X-rays
2. Gamma rays
3. Ultraviolet rays
4. Microwaves
Subtopic: Electromagnetic Spectrum |
75%
From NCERT
NEET - 2024
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If \(\lambda_X,\lambda_I,\lambda_M\) and \(\lambda_\gamma\) are the wavelengths of \(X\)-rays, infrared rays, microwaves and \(\gamma\)-rays respectively, then:
| 1. | \(\lambda_\gamma<\lambda_X<\lambda_I<\lambda_M\) |
| 2. | \(\lambda_M<\lambda_I<\lambda_X<\lambda_\gamma\) |
| 3. | \(\lambda_X<\lambda_\gamma<\lambda_M<\lambda_I\) |
| 4. | \(\lambda_X<\lambda_I<\lambda_\gamma<\lambda_M\) |
Subtopic: Electromagnetic Spectrum |
82%
From NCERT
NEET - 2022
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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: Electromagnetic Spectrum |
72%
From NCERT
NEET - 2022
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The wavelength range of ultraviolet rays is:
1. \(< 10^{-3} ~\text{nm}\)
2. \(700~\text{nm}~\text{to}~1~\text{nm}\)
3. \(400~\text{nm}~\text{to}~700~\text{nm}\)
4. \(1~\text{nm}~\text{to}~400~\text{nm}\)
1. \(< 10^{-3} ~\text{nm}\)
2. \(700~\text{nm}~\text{to}~1~\text{nm}\)
3. \(400~\text{nm}~\text{to}~700~\text{nm}\)
4. \(1~\text{nm}~\text{to}~400~\text{nm}\)
Subtopic: Electromagnetic Spectrum |
69%
From NCERT
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A carrot looks orange in colour because of the \(\beta\) carotene molecule in it. This means that the \(\beta\) carotene molecule absorbs light of wavelengths:
1. longer than \(550\) nm
2. shorter than \(550\) nm
3. longer than \(700\) nm
4. shorter than \(700\) nm
Subtopic: Electromagnetic Spectrum |
From NCERT
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