A simple pendulum makes 50 oscillations in one minute. Determine its period of oscillation?
A. 0.04s B. 0.83s C. 1.20s D. 50.00s Correct Answer: Option C C. 1.20sWhen a body is slightly titled, it is found that its centre of gravity s slightly raised. What is the state of equilibrium of the body?
A. unstable B. stable C. neutal D. cannot be detrmined Correct Answer: Option B B. stableAn object is dropped from the top of a tower. If it takes 4s for it to reach the ground, calculate the height of the tower.(g = 10 ms‾², ignore air resistance)
A. 20m B. 40m C. 80m D. 160m Correct Answer: Option C C. 80m Explanation H = ½gt² ½×10×4²=80Which of the following substances is the most volatile at room temperature?
A. water B. diesel C. petrol D. kerosine Correct Answer: Option C C. petrolProducts
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