Neco Physics Questions
Question 276:
Which of the following statements is/are correct in any machine?
I. The velocity ratio is usually greater than the mechanical advantage.
II. Efficiency work inputwork outputIII. The velocity ratio is independent of friction.
View Answer & ExplanationI. The velocity ratio is usually greater than the mechanical advantage.
II. Efficiency work inputwork outputIII. The velocity ratio is independent of friction.
Question 278:
Which of the following statements about a gas is NOT correct?
View Answer & ExplanationQuestion 279:
A body executing simple harmonic motion has an angular speed of 2π radians. Its period of oscillation is (π 3.14).
View Answer & ExplanationQuestion 280:
Which of the following statements is correct about light and sound waves? Both
View Answer & Explanation