Which of the following is are the characteristic features of Nanotechnology 1 Nanomaterials possess ...........

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Which of the following is/are the characteristic features of Nanotechnology?

1. Nanomaterials possess high mechanical strength as compared to their conventional counterparts.

2. Melting point of nanomaterial falls when the particle size of the material approaches to the nanoscale ranges.

3. In nanoparticles electron scattering phenomenon due to crystal defects decreases.

Select the correct answer using codes given below

1 and 2 only

2 and 3 only

1 and 3 only

All of the above

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Explanation:

As compare to conventional bulk particles nanomaterials exhibits some unique physical properties.
The melting point drastically falls when the particle size of the material approaches to the nanoscale ranges. All the nanomaterials possess high mechanical strength as compared to their conventional counterparts. Nanoparticle product enhance the crystal perfection and as well as it reduce the defects. As a result electron scattering phenomenon due to crystal defects are also reduced and a reduction in resistivity is experienced.