Heat transfer by convection will take place is one the following substance?

What is the S.I unit of relative density?

A. kg m−² B. kg m² C. kg cm³ D. has no S.I unit Correct Answer: Option D – has no S.I unit Explanation Note: relative density has no S.I unit ∴ Relative density = weight of substance ÷ weight of equal volume of water RD = w1 ÷ (w1 – w2) (no S. I...
Heat transfer by convection will take place is one the following substance?

Neutron were discovered by?

A. J.J. Thompson B. James Chadwick C. Michael faraday D. Dalton Correct Answer: Option B – James Chadwick Explanation Neutron were discovered by James Chadwick in 1931

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