10Hz
20Hz
1000Hz
5780Hz
Correct answer is C
λ = 2L 2 x 17 = 34cm F = Vλ = 34034×10−2 = 1000Hz
A ray of light strikes a plane mirror at a glancing angle of 50o. Calculate the angle between the in...
Which of the following represents the correct precision if the length of a piece of wire is measured...
The sketched graph above illustrates the heating curve of a 0.02kg of water. Determine the approxima...
A wire of length 30cm is moved with a speed of 2ms-1 at right angles to a magnetic field of flux den...
A 20-toothed gear wheel drives a 60-toothed one. If the angular speed of the smaller wheel is 120 re...
Neutron were discovered by ...
Planets do not twinkle because ...
When the nucleus of a uranium atom is split into two fragments of nearly equal mass the sum of the m...
At what distance from a simple microscope must an object be placed so that the image 5 times the siz...
23592U+10n→14456Ba+9036Kr+2X In the reaction above, X is...
Quantitative Reasoning Questions and Answers
Nigeria General Knowledge Questions and Answers
Microsoft Office Questions and Answers
Data Interpretation Questions and Answers
Puzzles Questions and Answers
Situational Judgement Questions and Answers
Spatial Reasoning Questions and Answers
Typing Speed and Accuracy Test
Logical Reasoning Questions and Answers
Verbal Reasoning Questions and Answers
Abstract Reasoning Questions and Answers
Numerical Reasoning Questions and Answers
Personality Test
See all →