physics

Which of the following will reduce the frequency of oscillation of a simple pendulum?

A. Increasing the mass of the bob B. Decreasing the mass of the bob C. Increasing the length of the…

5 years ago

At what angle to the horizontal must the nozzle of a machine gun be kept when firing to obtain a maximum horizontal range for the bullets?

A. 0.0° B. 22.5° C. 30.0° D. 45. 0° E. 90.0° Correct Answer: Option D - 45. 0°

5 years ago

Which of the following particles/rays do not originate from the nucleus of an atom?

A. Alpha particles B. Beta particles C. Neutrons D. Gamma rays E. X-rays Correct Answer: Option E - X-rays

5 years ago

Which of the following is used in a nuclear reactor to slow down fast-moving neutrons?

A. Carbon dioxide gas B. Liquid sodium metal C. Concrete shield D. Graphite rods E. Boron rods Correct Answer: Option…

5 years ago

Which of the following is not part of the electromagnetic spectrum?

A. Radio wave B. Gamma-ray C. Infra-red ray D. Alpha particle E. X-ray. Correct Answer: Option D - Alpha particle

5 years ago

Which of the following substances is most viscous at room temperature?

A. Water B. Alcohol C. Petrol D. Palm oil E. Kerosine Correct Answer: Option D - Palm oil

5 years ago

The angular speed of an object describing a circle of radius 4m with a linear constant speed of 10 ms-1 is?

A. 40.00 rad s-1 B. 14.00 rad s-1 C. 2.50 rad s-1 D. 1.58 rad s-1 E. 0.40 rad s-1…

5 years ago

What is the minimum force required to pull the body up the plane?

A body of mass 7.5 kg is to be pulled up along a plane which is inclined at 30o to…

5 years ago