pressure is increased
pressure is reduced
the rays of the sun add more heat to the water
the saturation vapour pressure of water is higher than at sea-level
the temperature is lower than at sea-level
Correct answer is B
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.
Which of the following properties is NOT exhibited by sound waves?
Diffraction
interference
Polarisation
Reflection
Refraction
Correct answer is C
No explanation has been provided for this answer.
90cm
40cm
30cm
20cm
10cm
Correct answer is A
No explanation has been provided for this answer.