Optical Instrument and Human eye
Ray Optics

282900 Which of the following produces virtual image?

1 Simple microscope
2 Ordinary camera
3 Projector
4 Cinemascope
Ray Optics

282901 In a simple microscope of focal length \(5 \mathrm{~cm}\), final image is formed at \(D(D=25 \mathrm{~cm})\), then its magnification will be :

1 6
2 5
3 2
4 1
Ray Optics

282902 A microscope has an objective of aperture 8 \(\mathrm{mm}\) and focal length of \(5 \mathrm{~cm}\). The minimum separation between two objects to be just resolved by the microscope is (wavelength of light used = \(5500 \AA\) )

1 \(2.2 \mu \mathrm{m}\)
2 \(3.4 \mu \mathrm{m}\)
3 \(4.2 \mu \mathrm{m}\)
4 \(3.6 \mu \mathrm{m}\)
Ray Optics

282903 Match List I with List II and select the correct answer using the code given below the Lists:
| | List I
(Disease) | List II
(Remedy) | |
| :--- | :--- | :--- | :--- |
| A. | Hypermetropia | 1. | Concave lens |
| B. | Presbyopia | 2. | bifocal lens |
| C. | Myopia | 3. | Surgery |
| D | Cataract | 4. | Convex lens |

1 **A** -4,**B** -2,**C** -1,**D** -3
2 **A** -4,**B** -1,**C** -2,**D** -3
3 **A** -3,**B** -1,**C** -2,**D** -4
4 **A** -3,**B** -2,**C** -1,**D** -4
Ray Optics

282904 The ratio of resolving powers of an optical microscope for two wavelengths \(\lambda_1=4000 \AA\) and \(\lambda_2=6000 \AA\) is

1 \(8: 27\)
2 \(9: 4\)
3 \(3: 2\)
4 \(16: 81\)
Ray Optics

282900 Which of the following produces virtual image?

1 Simple microscope
2 Ordinary camera
3 Projector
4 Cinemascope
Ray Optics

282901 In a simple microscope of focal length \(5 \mathrm{~cm}\), final image is formed at \(D(D=25 \mathrm{~cm})\), then its magnification will be :

1 6
2 5
3 2
4 1
Ray Optics

282902 A microscope has an objective of aperture 8 \(\mathrm{mm}\) and focal length of \(5 \mathrm{~cm}\). The minimum separation between two objects to be just resolved by the microscope is (wavelength of light used = \(5500 \AA\) )

1 \(2.2 \mu \mathrm{m}\)
2 \(3.4 \mu \mathrm{m}\)
3 \(4.2 \mu \mathrm{m}\)
4 \(3.6 \mu \mathrm{m}\)
Ray Optics

282903 Match List I with List II and select the correct answer using the code given below the Lists:
| | List I
(Disease) | List II
(Remedy) | |
| :--- | :--- | :--- | :--- |
| A. | Hypermetropia | 1. | Concave lens |
| B. | Presbyopia | 2. | bifocal lens |
| C. | Myopia | 3. | Surgery |
| D | Cataract | 4. | Convex lens |

1 **A** -4,**B** -2,**C** -1,**D** -3
2 **A** -4,**B** -1,**C** -2,**D** -3
3 **A** -3,**B** -1,**C** -2,**D** -4
4 **A** -3,**B** -2,**C** -1,**D** -4
Ray Optics

282904 The ratio of resolving powers of an optical microscope for two wavelengths \(\lambda_1=4000 \AA\) and \(\lambda_2=6000 \AA\) is

1 \(8: 27\)
2 \(9: 4\)
3 \(3: 2\)
4 \(16: 81\)
Ray Optics

282900 Which of the following produces virtual image?

1 Simple microscope
2 Ordinary camera
3 Projector
4 Cinemascope
Ray Optics

282901 In a simple microscope of focal length \(5 \mathrm{~cm}\), final image is formed at \(D(D=25 \mathrm{~cm})\), then its magnification will be :

1 6
2 5
3 2
4 1
Ray Optics

282902 A microscope has an objective of aperture 8 \(\mathrm{mm}\) and focal length of \(5 \mathrm{~cm}\). The minimum separation between two objects to be just resolved by the microscope is (wavelength of light used = \(5500 \AA\) )

1 \(2.2 \mu \mathrm{m}\)
2 \(3.4 \mu \mathrm{m}\)
3 \(4.2 \mu \mathrm{m}\)
4 \(3.6 \mu \mathrm{m}\)
Ray Optics

282903 Match List I with List II and select the correct answer using the code given below the Lists:
| | List I
(Disease) | List II
(Remedy) | |
| :--- | :--- | :--- | :--- |
| A. | Hypermetropia | 1. | Concave lens |
| B. | Presbyopia | 2. | bifocal lens |
| C. | Myopia | 3. | Surgery |
| D | Cataract | 4. | Convex lens |

1 **A** -4,**B** -2,**C** -1,**D** -3
2 **A** -4,**B** -1,**C** -2,**D** -3
3 **A** -3,**B** -1,**C** -2,**D** -4
4 **A** -3,**B** -2,**C** -1,**D** -4
Ray Optics

282904 The ratio of resolving powers of an optical microscope for two wavelengths \(\lambda_1=4000 \AA\) and \(\lambda_2=6000 \AA\) is

1 \(8: 27\)
2 \(9: 4\)
3 \(3: 2\)
4 \(16: 81\)
Ray Optics

282900 Which of the following produces virtual image?

1 Simple microscope
2 Ordinary camera
3 Projector
4 Cinemascope
Ray Optics

282901 In a simple microscope of focal length \(5 \mathrm{~cm}\), final image is formed at \(D(D=25 \mathrm{~cm})\), then its magnification will be :

1 6
2 5
3 2
4 1
Ray Optics

282902 A microscope has an objective of aperture 8 \(\mathrm{mm}\) and focal length of \(5 \mathrm{~cm}\). The minimum separation between two objects to be just resolved by the microscope is (wavelength of light used = \(5500 \AA\) )

1 \(2.2 \mu \mathrm{m}\)
2 \(3.4 \mu \mathrm{m}\)
3 \(4.2 \mu \mathrm{m}\)
4 \(3.6 \mu \mathrm{m}\)
Ray Optics

282903 Match List I with List II and select the correct answer using the code given below the Lists:
| | List I
(Disease) | List II
(Remedy) | |
| :--- | :--- | :--- | :--- |
| A. | Hypermetropia | 1. | Concave lens |
| B. | Presbyopia | 2. | bifocal lens |
| C. | Myopia | 3. | Surgery |
| D | Cataract | 4. | Convex lens |

1 **A** -4,**B** -2,**C** -1,**D** -3
2 **A** -4,**B** -1,**C** -2,**D** -3
3 **A** -3,**B** -1,**C** -2,**D** -4
4 **A** -3,**B** -2,**C** -1,**D** -4
Ray Optics

282904 The ratio of resolving powers of an optical microscope for two wavelengths \(\lambda_1=4000 \AA\) and \(\lambda_2=6000 \AA\) is

1 \(8: 27\)
2 \(9: 4\)
3 \(3: 2\)
4 \(16: 81\)
Ray Optics

282900 Which of the following produces virtual image?

1 Simple microscope
2 Ordinary camera
3 Projector
4 Cinemascope
Ray Optics

282901 In a simple microscope of focal length \(5 \mathrm{~cm}\), final image is formed at \(D(D=25 \mathrm{~cm})\), then its magnification will be :

1 6
2 5
3 2
4 1
Ray Optics

282902 A microscope has an objective of aperture 8 \(\mathrm{mm}\) and focal length of \(5 \mathrm{~cm}\). The minimum separation between two objects to be just resolved by the microscope is (wavelength of light used = \(5500 \AA\) )

1 \(2.2 \mu \mathrm{m}\)
2 \(3.4 \mu \mathrm{m}\)
3 \(4.2 \mu \mathrm{m}\)
4 \(3.6 \mu \mathrm{m}\)
Ray Optics

282903 Match List I with List II and select the correct answer using the code given below the Lists:
| | List I
(Disease) | List II
(Remedy) | |
| :--- | :--- | :--- | :--- |
| A. | Hypermetropia | 1. | Concave lens |
| B. | Presbyopia | 2. | bifocal lens |
| C. | Myopia | 3. | Surgery |
| D | Cataract | 4. | Convex lens |

1 **A** -4,**B** -2,**C** -1,**D** -3
2 **A** -4,**B** -1,**C** -2,**D** -3
3 **A** -3,**B** -1,**C** -2,**D** -4
4 **A** -3,**B** -2,**C** -1,**D** -4
Ray Optics

282904 The ratio of resolving powers of an optical microscope for two wavelengths \(\lambda_1=4000 \AA\) and \(\lambda_2=6000 \AA\) is

1 \(8: 27\)
2 \(9: 4\)
3 \(3: 2\)
4 \(16: 81\)