Q. No.The EM wave with the shortest wavelength among the following is:
1. Ultraviolet rays
2. \(X\)-rays
3. Gamma-rays
4. Microwaves
1. Ultraviolet rays
2. \(X\)-rays
3. Gamma-rays
4. Microwaves
Subtopic: Electromagnetic Spectrum |
80%
From NCERT
NEET - 2020
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Light is a kind of wave. The wavelength of visible light ranges from about \(4000~\mathring{A}\) to \(7000~\mathring{A}\). Which of the following statements is false?
| 1. | Ultraviolet light has a wavelength shorter than \(4000~\mathring{A}\). |
| 2. | Infrared light has a wavelength longer than \(7000~\mathring{A}\). |
| 3. | Red light has a wavelength near about \(7000~\mathring{A}\). |
| 4. | Violet light has a wavelength near about \(7000~\mathring{A}\). |
Subtopic: Electromagnetic Spectrum |
76%
From NCERT
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Among the various types of electromagnetic radiation, the one with the smallest wavelength is:
| 1. | \(\mathrm{X}\)-rays | 2. | Gamma rays |
| 3. | Ultraviolet rays | 4. | Microwaves |
Subtopic: Electromagnetic Spectrum |
80%
From NCERT
NEET - 2024
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The condition under which a microwave oven heats up a food item containing water molecules most efficiently is:
| 1. | the frequency of microwaves has no relation with the natural frequency of water molecules. |
| 2. | microwaves are heatwaves, so always produce heating. |
| 3. | infrared waves produce heating in a microwave oven. |
| 4. | the frequency of the microwaves must match the resonant frequency of the water molecules. |
Subtopic: Electromagnetic Spectrum |
80%
From NCERT
AIPMT - 2013
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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 |
84%
From NCERT
NEET - 2022
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The most penetrating radiation out of the following is:
1. \(X\text-\)rays
2. \(\beta\text-\)rays
3. \(\alpha\text-\)rays
4. \(\gamma\text-\)rays
Subtopic: Electromagnetic Spectrum |
82%
From NCERT
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Which of the following is not an electromagnetic wave?
1. Radio wave
2. Micro wave
3. Cosmic rays
4. -rays
Subtopic: Electromagnetic Spectrum |
85%
From NCERT
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Subtopic: Electromagnetic Spectrum |
88%
From NCERT
NEET - 2019
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Which statement is correct for X-rays and gamma rays?
| 1. | X-rays are emitted from electronic transitions while gamma rays are emitted from nuclear transitions. |
| 2. | X-rays have less penetrating power in comparison to gamma rays, in general. |
| 3. | The frequency of gamma rays is more than the frequency of X-rays, in general. |
| 4. | All of the above. |
Subtopic: Electromagnetic Spectrum |
89%
From NCERT
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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 |
75%
From NCERT
NEET - 2022
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