# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 59 - 63 of 2320

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## Question number: 59

» Kinematics » Motion in a Straight Line

### Question

A body falls from a height h = 200 m. The ratio of distance travelled in each 2 second during t = 0 to t = 6 second of the journey is

### Choices

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

a. | 1: 2: 3 | |

b. | 1: 3: 5 | |

c. | 1: 2: 4 | |

d. | 1: 4: 9 |

## Question number: 60

» Physics and Measurement » SI Units

### Question

SI unit of permittivity is

### Choices

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

a. | C | |

b. | C | |

c. | C | |

d. | C |

## Question number: 61

» Kinematics » Motion in a Straight Line

### Question

A stone is dropped from a miner of height h and it reaches after t seconds on earth. From the same miner if two stones are thrown (one upwards and other downwards) with the same velocity u and they reach the earth surface after t _{1} and t _{2} seconds respectively, then

### Choices

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

a. | t = t | |

b. | t = | |

c. | t = | |

d. | t = |

## Question number: 62

» Kinematics » Motion in a Straight Line

### Question

### Assertion (Ꭺ)

Displacement of a body may be zero when distance travelled by it is not zero.

### Reason (Ꭱ)

The displacement is the longest distance between initial and final position.

### Choices

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

a. | Both Ꭺ and Ꭱ are false | |

b. | Ꭺ is true but Ꭱ is false | |

c. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |

d. | Ꭺ is false but Ꭱ is true |

## Question number: 63

» Kinematics » Frame of Reference

### Question

if a particle travels a linear distance at speed v _{1} and comes back along the same track at speed v _{2}.

(1) Its average speed is arithmetic mean (v _{1} + v _{2}) / 2

(2) Its average speed is harmonic mean 2 v _{1} v _{2} / (v _{1} + v _{2}) /2

(3) Its average speed is geometric mean √v _{1} v _{2}

(4) Its average velocity is zero

### Choices

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

a. | 1 and 2 | |

b. | 1,2 and 3 | |

c. | 2 and 4 | |

d. | 1 and 3 |