A sheet of white paper viewed through blue glass appears blue because
blue is a primary colour
the glass absorbs all colours except the blue colour
the glass reflects blue colour
the paper reflects blue colour only
white light is easily absorbed by the glass
Correct answer is B
No explanation has been provided for this answer.
32.84cm3
40.02cm3
48.40cm3
57.44cm3
72.84cm3
Correct answer is C
No explanation has been provided for this answer.
J.J. Thomson’s model of the atom was abandoned because
it could not explain the scattering of alpha particles
it did not account for the neutron
it did not account for the size of the atom
it was known as plum-pudding model
the model was not similar to any observable phenomena
Correct answer is A
No explanation has been provided for this answer.
An evidence of the wave nature of matter is
Brownian motion
Compton effect
diffraction
diffusion
photo electricity
Correct answer is C
No explanation has been provided for this answer.