In vector product, the direction of product vector can be found by the: A. Right hand ruleB. Left hand ruleC. Head to tail ruleD. None of the above Answer A. Right hand rule In vector product, the direction of product vector can be found by the: Read More »
Al-Beruni is famous for finding out the: A. Distance of moon from EarthB. Mass of the EarthC. Diameter of Earth’s orbitD. Circumference of the Earth Answer D. Circumference of the Earth Al-Beruni is famous for finding out the: Read More »
𝜷 – particles ionizes an atom due to: A. Electrostatic force of attractionB. Electrostatic force of repulsionC. Direct collisionD. None of the above Answer B. Electrostatic force of repulsion 𝜷 – particles ionizes an atom due to: Read More »
Capture of a neutron by a nucleus results in the formation of: A. ProtonB. ElectronC. Radio isotopesD. Deutron Answer C. Radio isotopes Capture of a neutron by a nucleus results in the formation of: Read More »
One coulomb is equal to how many e.s units? A. 1 x 107 e.s. units B. 3 x 108 e.s. units C. 3 x 109 e.s. units D. 4 x 1010 e.s. units Answer C. 3 x 109 e.s. units One coulomb is equal to how many e.s units? Read More »
A thermometer is said to be sensitive if it: A. Quickly takes the temperature of the body in contactB. Can measure large temperatureC. Can measure low temperatureD. None of the above Answer C. Can measure low temperature A thermometer is said to be sensitive if it: Read More »
If the object is place between f and lens inside f (convex lens) then its image will be: A. Virtual, erect and magnifiedB. Virtual, erect and diminishedC. Virtual, inverted and diminishedD. Real, inverted and magnified Answer A. Virtual, erect and magnified If the object is place between f and lens inside f (convex lens) then its image will be: Read More »
The displacement of a vibrating mass attached to a spring at time t is given by: A. x = x0 sin√(𝑘/𝑚) t B. x = x0 cos√(𝑘/𝑚)𝑡 C. x = x0 cos√𝑘𝑚𝑡 D. x = x0 cos〖(𝑘/𝑚 𝑡)〗 Answer B. x = x0 cos√(𝑘/𝑚)𝑡 The displacement of a vibrating mass attached to a spring at time t is given by: Read More »
The value of g at a depth of x metres from the surface of the Earth is calculated from the formula: A. ga = 𝐺𝑀a/(𝑅a−𝑥) B. ga = 𝐺𝑀a/(𝑅a−𝑥)2 C. ga = 𝐺𝑀a/(𝑥 −𝑅a) D. ga = 𝐺𝑀a/(𝑅a−𝑥)2 Answer D. ga = 𝐺𝑀a/(𝑅a−𝑥)2 The value of g at a depth of x metres from the surface of the Earth is calculated from the formula: Read More »
When an object does not change its position with respect to its surroundings, it is said to be in a state of: A. Dynamic equilibriumB. Static equilibriumC. Total equilibriumD. Uniform motion Answer B. Static equilibrium When an object does not change its position with respect to its surroundings, it is said to be in a state of: Read More »