General Science - MCQ Practice Questions
Practice free General Science multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.
207 questions | 100% Free
A nucleus undergoes beta decay. Which particle is emitted along with an antineutrino?
Which phenomenon explains the blue color of the sky?
A 1000 W heater operates at 250 V. What is its resistance?
A concave mirror has a focal length of 10 cm. An object is placed 5 cm from the mirror. What type of image is formed?
Two resistances of 10 Ω and 20 Ω are connected in parallel. What is the equivalent resistance?
A sound wave has a frequency of 440 Hz and travels at 330 m/s in air. What is its wavelength?
When a spring is compressed by 0.1 m, the elastic potential energy stored is 5 J. What is the spring constant?
Which of the following correctly describes the photoelectric effect?
A moving object has kinetic energy K. If its velocity is doubled, what will be its new kinetic energy?
Which law of thermodynamics explains why heat cannot spontaneously flow from a colder body to a hotter body?
A ball is thrown vertically upward with initial velocity 20 m/s. What maximum height does it reach? (g = 10 m/s²)
Two capacitors of 2 μF and 3 μF are connected in series. What is the equivalent capacitance?
A body moves in a circle of radius 5 m with constant speed 10 m/s. What is the centripetal acceleration?