The S.I unit for sound energy is
Hz
cd
dB
J
Correct answer is D
Every form of energy is measured in joules (J).
When an object is placed between the principal focus and the optical center of a convex lens, it cou...
An electric lamp rated 120W is used on a 240Vrms, calculate the resistance of its filament ...
A body of mass 6kg rests on an inclined plane. The normal reaction is R and the limiting frictional ...
An object weight 10N immersed in a liquid displaces a quantity of the liquid. If the liquid displace...
If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is ...
When the pointed end of an uncharged optical pin is brought near the cap cf a positively charged ele...
If a positively charged glass-rod is used to charge an electroscope X by contact and an electroscope...
Which of the following devices does not makes use of eddy current for its action? A/An ...
The silvered surface in a vacuum flask reduces heat loos due to ...
An electron moves from an energy level of -8.6 eV to another level of -3.5 eV. Determine the frequen...
Abstract Reasoning Questions and Answers
Spatial Reasoning Questions and Answers
Puzzles Questions and Answers
Microsoft Office Questions and Answers
Logical Reasoning Questions and Answers
Quantitative Reasoning Questions and Answers
Situational Judgement Questions and Answers
Typing Speed and Accuracy Test
Data Interpretation Questions and Answers
Numerical Reasoning Questions and Answers
Nigeria General Knowledge Questions and Answers
Verbal Reasoning Questions and Answers
Personality Test
See all →