🔬 General Science Solved MCQs with Answers

Practice 4010 approved 🔬 General Science questions with verified answers from the 🌐 Current Affairs & GK subject for Pakistan exams.

4010 solved MCQs

Two masses are separated by a distance r. If both masses are doubled, the force of interaction between the two masses changes by a factor of ______?Answer: 4 When twister circle winds cover an area of several kilometers, it is called ______?Answer: Cyclone Which of the following forces can act as a centripetal force?Answer: All of the above A convex lens with a focal length of 8.00 cm has the power of _____?Answer: 12.5 D Sound frequencies lower than 20 Hz are referred to as ______?Answer: Infrasonic Hemodialysis is a process of:Answer: Blood cleaning Determination of oxygen carried by hemoglobin is done by:Answer: All of these Which is the most abundant mineral in our the body?Answer: Calcium Study of life is called:Answer: Biology The potential energy of a certain spring when stretched through a distance 'S' is 10 joule. The amount of work (in joule) that must be done on this spring to stretch it through an additional distance 'S' will be _____?Answer: 30 J Mars the neighbor planet of earth has how many natural satellites?Answer: Two Which instrument is used to measure the amount of liquid precipitation over a set period of time?Answer: Rain Gauge (Also called Udometer) A camera uses convex lens to form an image which is?Answer: Real, Inverted, Diminished When NaHCO₃ is heated, it produces?Answer: CO₂ Carbon Dioxide When the velocity of a body increases from 10 m/s to 15 m/s in 4 seconds, then the acceleration will be _____?Answer: 1.25m/s² Rate of change of linear momentum is called _____?Answer: Force The angle of incidence of a ray for which the angle of refraction is 90° is called ____?Answer: Critical Angle When 𝑁2 is bombarded with an alpha particle, what are the products?Answer: Oxygen and Proton The momentum of an object changes from 20 kg m/s to 5 kg m/s in 3 sec. The value of the applied force will be ______?Answer: 5 N Work done is negative when ______?Answer: Force and displacement are in opposite directions Iron and steel structures are damaged by which gas?Answer: Sulphur dioxide What is the speed of sound in air?Answer: 1235 km/h A frequency distribution having two modes is called ______?Answer: Bimodal The number which occur with highest frequency is called ___?Answer: Mode The orbital electrons have ______ amount of energy.Answer: Specific A force of 10 N acting along y-axis, it's component along z-axis is ____?Answer: 0 N A scalar quantity _____?Answer: Maximum in solids Atomic number of silver is 47. The number of its valence electrons would be _____?Answer: 1 Center of gravity of an object lies _____?Answer: May be outside or inside the object The oscillatory systems do not oscillate indefinitely because of ______?Answer: Frictional force