Welcome to your Science Quiz 27
1.
Who among the following anticipated Newton by declaring that all things gravitate to the earth? [1995]
2.
Optical fibre works on the principle of: [1995]
3.
Suppose a rocket ship is receding from the earth at a speed of 2/10th the velocity of light. A light in the rocket ship appears blue to the passengers on the ship. What colour would it appear to an observer on the earth? [1995]
4.
An air bubble in water will act like a: [1995]
5.
Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen? [2024]
6.
Consider the following statements: 1.Carbon fibres are used in the manufacture of components used in automobiles and aircrafts. 2.Carbon fibres once used cannot be recycled.
Which of the statements given above is/are correct?
7.
With reference to polyethylene terephthalate, the use of which is so widespread in our daily lives, consider the following statements:
- Its fibres can be blended with wool and cotton fibres to reinforce their properties.Â
- Containers made of it can be used to store any alcoholic beverage.Â
- Bottles made of it can be recycled into other products.Â
- Articles made of it can be easily disposed of by incineration without causing greenhouse gas emissions.Â
Which of the statements given above are correct?
8.
Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?
9.
Water can dissolve more substances than any other liquid because:
10.
Consider the following pairs: Commonly used / consumed materials and Unwanted or controversial chemicals likely to be found in them:
- Lipstick – LeadÂ
- Soft drinks – Brominated vegetable oilsÂ
- Chinese fast food – Monosodium glutamateÂ
Which of the pairs given above is/are correctly matched?
