BU_Quizizz1
Authored by Rajeeb Brahma
Physics
University
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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Thickness of thin film can be upto
100 nano meter
10 micro meter
10 cm
1 inch
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Thermal evaporation technique is used for
nano powder
metallic film
carbon nanotube
All of the above
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
What is a nanoparticle?
A particle that is 1 -10 nanometres (nm) in diameter.
A particle that is 1 -100 nanometres (nm) in diameter.
A particle that is 10 -100 nanometres (nm) in diameter.
A particle that is 1 -1000 nanometres (nm) in diameter.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is a use of nano-sized titanium dioxide?
Shower gel
Shampoo
Sun-cream
Moisturiser
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Why are people concerned about the use of nanoparticles?
Don't know the long term effects
Too expensive
Too small to see
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