# Properties of Solids & Liquids (NEET Physics): Questions 148 - 152 of 188

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## Question number: 148

» Properties of Solids & Liquids » Young's Modulus

### Question

A stress of 2 kg/mm ^{2} is applied on a wire. If the modulus of elasticity of the wire is 10 ^{10} dyne/cm ^{2}, then the percentage increase in the length of the wire will be

### Choices

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

a. | 0.0098 | |

b. | 0.007 | |

c. | 0.0028 | |

d. | 0.0196 |

## Question number: 149

» Properties of Solids & Liquids » Elastic Behavior

### Assertion (Ꭺ)

The bridges declared unsafe after a long use.

### Reason (Ꭱ)

Elastic strength of bridges losses with time.

### Choices

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

a. | Both Ꭺ and Ꭱ are false | |

b. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ | |

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

d. | Ꭺ is true but Ꭱ is false |

## Question number: 150

» Properties of Solids & Liquids » Thermal Expansion

### Question

The temperature of equal masses of three different liquids *A, B * and *C * are 12°C, 19 ^{0} C and 28°C respectively. The temperature when A and *B * are mixed is 16°C and who and C are mixed is 23 ^{0} C. The temperature when *A and C* are mixed is

### Choices

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

a. | 25.2°C | |

b. | 22°C | |

c. | 20.2°C | |

d. | 18.2°C |

## Question number: 151

» Properties of Solids & Liquids » Young's Modulus

### Question

A steel wire is 4.0 m long and 2 mm in diameter. Young’s modulus of steel is 1.96 x 10 ^{11} N/m ^{2}. If a mass of 20 kg is suspended from it the elongation produced will be -

### Choices

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

a. | 0.64 mm | |

b. | 127 mm | |

c. | 2.54 mm | |

d. | 0.27 mm |

## Question number: 152

» Properties of Solids & Liquids » Specific Heat Capacity

### Question

A beaker contains 200 gm of water. The heat capacity the beaker is equal to that of 20 gm of water. The initial temperature of water in the beaker is 20°C. If 440 gm hot water at 92°C is poured in it, the final temperature (neglecting radiation loss) will be nearest to

### Choices

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

a. | 68°C | |

b. | 73°C | |

c. | 58°C | |

d. | 78°C |