Answer:A
Explanation:
Particles are displaced and return to their normal position after the wave passes
Answer:
The Temperature is the measure of Average Kinetic Energy of the molecule in the substance.
Temperature and Kinetic Energy of molecules are related by the equation

Where
<E> denotes average kinetic energy
k - Boltzmann constant
T - Temperature of the substance
Explanation:
The energy inside the substance is characterised by translational and vibrational motion.
The molecules in a substance have a range of kinetic energies because they don't all move at the same speed. As a substance absorbs heat the particles move faster so the average kinetic energy and therefore the temperature increases.
As the molecules of a substance vibrate faster their temperature increases.
Thus an increase energy corresponds to an increase in temperature
<E> α T (α denotes proportionality)

Answer:
hello your question is not properly arranged attached below is the arranged table and solution
answer : attached table below
Explanation:
Given data:
02 molecules size = 10^-10m
smoke particles size = 0.3 mm
cloud droplets size = 20 mm
Rain droplets size = 3 mm
Attached below is a table showing the kind of scattering that is expected to occur at various wave lengths
Note : For Rayleigh scattering the wave particle is smaller than the wave length while for Non-selective scattering the wave particle is greater than the wavelength.
and For Mie scattering the wavelength is the same as the wavelength.
Answer:
(a)1.557 radian (b) 1.424 A
Explanation:
Frequency of oscillation of sound = 100 Hz

(a)The phase difference is given by
where v is the velocity of sound in air
So phase difference
as 
So phase difference 
(b) The resultant amplitude is given by 
The right answer is A. I'm one lever and two wedges
Hope this helps