The co-efficient of expansion of nylon fibre is...............per degree C.

The temperature at which the fibre nature transformation from glass to rubber is called

The thermal conductivity of polyester is............

സൗരയൂധം പിന്നിട്ട ആദ്യ മനുഷ്യനിർമിത  പേടകം 

Weibo is a social media platform popular in

With reference to ‘Near Field Communication (NFC) Technology’, which of the following statements is/arc correct?
I. It is a contactless communication technology that uses electromagnetic radio fields.
2. NFC is designed for use by devices which can be at a distance of even a metre from each other.
3. NFC can use encryption when sending sensitive information.
Select the correct answer using the code given below.