Q. No.Choose the correct option relating wavelengths of different parts of electromagnetic wave spectrum:
| 1. | \( \lambda_{\text {radio waves }}>\lambda_{\text {micro waves }}>\lambda_{\text {visible }}>\lambda_{\text {x-rays }}\) |
| 2. | \(\lambda_{\text {visible }}>\lambda_{\text {x-rays }}>\lambda_{\text {radio waves }}>\lambda_{\text {micro waves }} \) |
| 3. | \( \lambda_{\text {x-rays }}<\lambda_{\text {micro waves }}<\lambda_{\text {radio waves }}<\lambda_{\text {visible }}\) |
| 4. | \( \lambda_{\text {visible }}<\lambda_{\text {micro waves }}<\lambda_{\text {radio waves }}<\lambda_{\mathrm{x} \text {-rays }}\) |
Subtopic: Electromagnetic Spectrum |
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Level 1: 80%+
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Match List-I (Electromagnetic wave type) with List-II (Its association/application) and select the correct option from the choices given below the list:
| List-I | List-II | ||
| (a) | Infrared waves | (i) | To treat muscular strain |
| (b) | Radio waves | (ii) | For broadcasting |
| (c) | X-rays | (iii) | To detect fractures of bones |
| (d) | Ultraviolet rays | (iv) | Absorbed by the ozone layer of the atmosphere |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (i) | (ii) | (iv) | (iii) |
| 2. | (iii) | (ii) | (i) | (iv) |
| 3. | (i) | (ii) | (iii) | (iv) |
| 4. | (iv) | (iii) | (ii) | (ii) |
Subtopic: Electromagnetic Spectrum |
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Level 1: 80%+
JEE
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The energy of gamma \(\left({\gamma}\right)\) ray photon is \({E}_{\gamma}\) and that of an \(X\text-\)ray photon is \({E}_{\chi}.\) If the visible light photon has an energy of \({E}_{\upsilon}\), then we can say that:
1. \({E}_{\chi}>{E}_{\gamma}>{E}_{\upsilon}\)
2. \({E}_{\gamma}>{E}_{\upsilon}>{E}_{\chi}\)
3. \({E}_{\gamma}>{E}_{\chi}>{E}_{\upsilon}\)
4. \({E}_{\chi}>{E}_{\upsilon}>{E}_{\gamma}\)
1. \({E}_{\chi}>{E}_{\gamma}>{E}_{\upsilon}\)
2. \({E}_{\gamma}>{E}_{\upsilon}>{E}_{\chi}\)
3. \({E}_{\gamma}>{E}_{\chi}>{E}_{\upsilon}\)
4. \({E}_{\chi}>{E}_{\upsilon}>{E}_{\gamma}\)
Subtopic: Electromagnetic Spectrum |
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Level 1: 80%+
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Which is more energetic: an infrared wave or a microwave?
| 1. | infrared wave |
| 2. | microwave |
| 3. | both have the same energy |
| 4. | it cannot be predicted |
Subtopic: Electromagnetic Spectrum |
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Level 1: 80%+
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Subtopic: Electromagnetic Spectrum |
86%
Level 1: 80%+
NEET - 2019
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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 |
Choose the correct answer from the options given below:
| 1. | A-III, B-II, C-I, D-IV |
| 2. | A-II, B-I, C-III, D-IV |
| 3. | A-II, B-IV, C-IIII, D-I |
| 4. | A-III, B-I, C-II, D-IV |
Subtopic: Electromagnetic Spectrum |
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Level 1: 80%+
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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 |
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Level 1: 80%+
NEET - 2022
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Which of the following electromagnetic waves has the highest energy?
1. \(\mathrm{X} \text-\)rays
2. Infrared
3. Microwaves
4. radio waves
1. \(\mathrm{X} \text-\)rays
2. Infrared
3. Microwaves
4. radio waves
Subtopic: Electromagnetic Spectrum |
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Level 1: 80%+
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Remote switches of \(\mathrm{TV}\) sets, video recorders, and hi-fi systems use:
1. \(\mathrm{UV}\) rays
2. \({X}\)-rays
3. \(\gamma\)-rays
4. Infrared waves
1. \(\mathrm{UV}\) rays
2. \({X}\)-rays
3. \(\gamma\)-rays
4. Infrared waves
Subtopic: Electromagnetic Spectrum |
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Level 1: 80%+
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Match List-I with List-II and choose the correct option.
| List-I | List-II | ||
| (A) | Microwave | (p) | \(400 ~\text{nm} – 1 ~\text{nm}\) |
| (B) | Ultraviolet | (q) | \(1 ~\text{nm} – 1 ~\text{pm}\) |
| (C) | X-rays | (r) | \(2.5~\mu\text m – 750~\text{nm}\) |
| (D) | Infrared | (s) | \(1~\text{mm} – 25~\mu \text m\) |
| 1. | \(\mathrm{A\text-(s), B\text-(q), C\text-(r), D\text-(p)}\) |
| 2. | \(\mathrm{A\text-(s), B\text-(p), C\text-(q), D\text-(r)}\) |
| 3. | \(\mathrm{A\text-(p), B\text-(s), C\text-(q), D\text-(r)}\) |
| 4. | \(\mathrm{A\text- (r), B\text- (q), C\text- (s), D\text-(p)}\) |
Subtopic: Electromagnetic Spectrum |
83%
Level 1: 80%+
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