3.2 x 10-2J
1.6 x 10-2J
8.0 x 10-4J
4.0 x 10-4J
Correct answer is B
W = cv22=20×10−6×4022 = 1.6 x 10-2J
The length of a simple pendulum is increased by a factor of four. By what factor is its period incre...
An alternating source is connected in series to a capacitor of capacity reactance \( 10^3 \sqrt{3} \...
Calculate the work done when a force of 20N stretches a spring by 50mm. ...
Lux is the SI unit of ...
Calculate the energy required to vapourise 50g of water initially at 80oC.[specific heat capacity of...
Which of the following are found in the receiver but not in the microphone of a telephone handset? ...
Which of the following electromagnetic waves has the shortest wavelength? ...
The diagram above is a block and tackle pulley system in which an effort of 80N is use to lift a loa...
In the diagram above a beam of white light travels from a rare to a dense medium. What colours of li...
The focal length of the eye-piece of an astronomical telescope is f1, while the focal length of the ...
Abstract Reasoning Questions and Answers
Puzzles Questions and Answers
Typing Speed and Accuracy Test
Verbal Reasoning Questions and Answers
Numerical Reasoning Questions and Answers
Quantitative Reasoning Questions and Answers
Logical Reasoning Questions and Answers
Nigeria General Knowledge Questions and Answers
Spatial Reasoning Questions and Answers
Personality Test
Situational Judgement Questions and Answers
Data Interpretation Questions and Answers
Microsoft Office Questions and Answers
See all →