Which of the following is not a unit of time?
(A) light year
(B) leap year
(C) Moon month
(D) None of these
Which one of the following common devices works on the basis of the principle of mutual induction?
(A) Tubelight
(B) Transformer
(C) Photodiode
(D) LED
The sum of the change in kinetic and potential energy is always-
(A) Zero
(B) Positive
(C) Negative
(D) None of the above
When resistors are connected in series, then net resistance____.
(A) Increases
(B) Decreases
(C) Remains same
(D) None of these
What type of energy is used to perform bodily functions?
(A) electric energy
(B) Solar energy
(C) muscle energy
(D) Chemical energy
Who is considered as the ultimate source of all forms of energy?
(A) Coal
(B) Atom
(C) Water
(D) Sun
Get the Examsbook Prep App Today