Everyday Science MCQs

5120 MCQs  (Page 333 of 512)

Rutherfords planet like structure was defective and unsatisfactory because_________________?
A. Moving e- accelerate towards the nucleus
B. Continuous spectrum
C. Behavior of electron remain unexplained
D. All
The viscosity of solids is________________?
A. Infinite
B. Negligible
C. Medium
D. No concept of viscosity in solid
The amount of heat absorbed when one mole of a liquid is changed into gas at its boiling point is_____________________?
A. Molar heat of sublimation
B. Molar heat of fusion
C. Molar heat of vapourization
D. Latent heat of that liquid
All of the following were theorized by Bohr in his description of the atom except__________________?
A. Angular momentum of electrons in multiples of h/2?
B. Electrons revolve in discrete circular orbits
C. Energy of each electron is directly proportional to n2
D. Electrons radiate energy continuously in a given orbit.
Rising of a wetting liquid in a capillary tube is due to__________________?
A. Surface tension
B. Cohesive forces
C. Adhesive forces
D. Viscosity
Liquid gets the shape of the container when it is poured into it. Which one of the following reasons justifies it ?
A. Liquid do not have definite shape
B. Liquid do not have definite volume
C. Lieuid is highly compressible
D. Liquid molecules can slide over each other