# Wave Optics-Young's Double Slit Experiment (NEET Physics): Questions 8 - 11 of 17

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## Question number: 8

» Wave Optics » Young's Double Slit Experiment

### Question

In Young’s double slit experiment 10^{th} order maximum is obtained at the point of observation in the interference pattern for *λ * = 7000 Å. If the source is replaced by another one of wavelength 5000 Å then the order of maximum at the same point will be-

### Choices

Choice (4) | Response | |
---|---|---|

a. | 16 | |

b. | 12 | |

c. | 14 | |

d. | 18 |

## Question number: 9

» Wave Optics » Young's Double Slit Experiment

### Question

In Young’s experiment the wavelength of red light is 7.5 × 10 ^{-5} cm. and that of blue light 5.0 × 10 ^{-5} cm. The value of n for which (n + l) ^{th} blue bright band coincides with n ^{th} red bright band is-

### Choices

Choice (4) | Response | |
---|---|---|

a. | 8 | |

b. | 4 | |

c. | 1 | |

d. | 2 |

## Question number: 10

» Wave Optics » Young's Double Slit Experiment

### Question

In Young’s double slit experiment, carried out with light of wavelength *λ = * 5000 Å, the distance between the slits is 0.2 mm and the screen is at 200 cm from the slits, The central maximum is at x = 0. The third maximum will be at

### Choices

Choice (4) | Response | |
---|---|---|

a. | 1.5 cm | |

b. | 5.0 cm | |

c. | 1.67 cm | |

d. | 0.5 cm |

## Question number: 11

» Wave Optics » Young's Double Slit Experiment

### Question

The Young’s double slit experiment, the ratio of intensities of bright and dark fringes is 9. This means that

(1) The intensities of individual sources are 5 and 4 units respectively

(2) The intensities of individual sources are 4 and 1 units respectively

(3) The ratio of the their amplitudes is 3

(4) The ratio of their amplitude is 2

Select the correct answers and mark it according to the following codes:

Codes:

### Choices

Choice (4) | Response | |
---|---|---|

a. | 2 and 4 are correct | |

b. | 1, 2 and 3 are correct | |

c. | 1 and 3 are correct | |

d. | 1 and 2 are correct |