physics

Lenz’s law of electromagnetic induction is essentially a statement of the?

A. Inverse square law of gravitation B. Inverse square law of magnetism C. Inverse square law of electrostatics D. Law…

5 years ago

The odor of a leaking gas is perceived at a distance from the source. This is made possible by the process of?

A. Sublimation B. Diffusion C. Osmosis D. Evaporation E. Capillarity Correct Answer: Option B - Diffusion

5 years ago

The half-life of a radioactive material is 6hrs. What quantity of 1kg of the material would decay in 24 hours?

A. 15/16kg B. 1/2kg C. 1/4kg D. 1/8kg E. 1/16kg Correct Answer: Option E - 1/16kg

5 years ago

When a paint brush is removed from clean water, the bristles of the brush are pulled together because of?

A. The viscosity of the surrounding air B. The low density of water C. Surface tension forces D. The weight…

5 years ago

Which of the following statements is not true of nuclear fission?

A. Mother nucleus is broken into two daughter nuclei of roughly equal parts B. Neutron is normally used in bombarding…

5 years ago

The ratio of tensile stress to tensile strain is known as?

A. Modulus of integrity B. Modulus of elasticity C. Shear modulus D. Bulk modulus E. Young’s modulus Correct Answer: Option…

5 years ago

Which of the following is not correct about the Rutherford’s model of an atom?

A. The mass of an atom is concentrated around the nucleus B. The nucleus of an atom is positively charged…

5 years ago

Which of the following statements about kinetic theory of matter is not correct?

A. The molecules of matter are always in motion B. When a body is heated the average kinetic energy of…

5 years ago

Calculate the time taken for the water to freeze?

A cup containing 100g of pure water at 20°C is placed in a refrigerator. If the refrigerator extracts heat at…

5 years ago