Consider the following statements: 1. Nano means 10-9 so that nano materials have an order of dimension higher than the size of atom and come in the form of rods, tubes, spheres or even thin sheets/films. 2. Nano materials have enhanced or changed structural property. 3. Nano elements lend themselves to mechanical processing like rolling, twisting, positioning. 4. Nano elements show important electrical, magnetic and optical characteristics that are useful in electrical industry. Which of the above statements are correct?

Consider the following statements: 1. Nano means 10-9 so that nano materials have an order of dimension higher than the size of atom and come in the form of rods, tubes, spheres or even thin sheets/films. 2. Nano materials have enhanced or changed structural property. 3. Nano elements lend themselves to mechanical processing like rolling, twisting, positioning. 4. Nano elements show important electrical, magnetic and optical characteristics that are useful in electrical industry. Which of the above statements are correct? Correct Answer 1, 2, 3 and 4

  • The atomic radius is the order of 10-10 to 10-14 m whereas nano means 10-9m whose order of dimension is higher and nano materials do exist in the form of rods, tabes, spheres etc.
  • Nano elements under goes nano technology in which manipulation of materials are done to enhanced or changed structural property and processed at the nanoscale level. Such as carbon nanotubes etc.
  • Moreover, nano elements exhibit prominent electrical, magnetic, optical characteristics and these materials can be processed through rolling, twisting, positioning.

Related Questions

The question given below consists of a statement, followed by three arguments numbered I, II and III. You have to decide which of the arguments is/are ‘strong’ arguments and which is/are ‘weak’ arguments and accordingly choose your answer from the alternatives given below each question. Statement: In the wake of globalization and digitization of the manner in which the business are conducted, the IT/ITES industry holds a significant place in the future business scenario. The Economic Survey 2017-18 mentioned that the IT/ITES services industry in India has scaled to around $140 billion during 2016-17. India today is globally the top outsourcing destination accounting for more than half of the market share. The IT/ITES industry has contributed around 7.7% of the country's GDP and according to IBEF is a key employment generator with a projection of creating 1.3-1.5 lakh new jobs annually. Which among the following arguments support the above statement in the best possible manner? Arguments: I. The Government has also provided considerable inputs to the industry with its various flagship programmes such as Digital India, Smart Cities, e-Governance coupled with a drive towards a cashless economy. II. The Government has been pro-active in considering demands of the industry and providing timely respite from the teething troubles under GST as well.  III. The IT/ITES industry is a labour intensive industry and a large scale employment generator. It is a common practice across the industry to provide various privileges and facilities to their staff in order to boost employee retention rates in their organisation.