Alveoli are tiny sacs in the lungs whose average diameter is `5x10^-10`m consider a oxygen molecule `(5.3x10^-26 kg)` trapped within a sac.Calculate uncertainty in the velocity of oxygen molecule.

The uncertainity in the position of a moving bullet of mass 10 g is 10^(-5) m.Calculate the uncertainty in its velocity .

The area of one of the walls of container is 3cm^2 . 10^23 Number of molecules are incident on it every second at an angle of 45^@ . What is the pressure exerted on the wall if the velocity of each molecule is 10^5 cm.s^-1 and it mass is 3.32 times 10^-24 g ?

The uncertainties in posiiton and velocity of a particle are 10^(-10) m and 5.27xx10^(-24)m*s^(-1) respectively. Calculate the mass of the particle.

The uncertainty in the determination of velocity of a dust particle (of mass 0.1 mg) is 4.5xx10^(-20)m*s^(-1) . Calculate the least uncertainty in its position.

The velocity of a nitrogen molecule on the earth surface is equal to its rms speed at 0^@C IF the molecule moves straights upwards without any collisions with other molecules, determine the height up to which the molecule would rise. The mass of a nitrogen molecule m=4.65 times 10^-26 kg and k=1.38 times 10^-23 J.K^-1

The mass of an electron is 9.1x10^-31 kg if K.E. is 3xx10^-25 J calculate its wavelength in nm.

At a constant temperature, a vessel of 1 litre capacity contains 10^(23)N_(2) molecules. If the rms velocity of the molecules be 10^(3)m//s , then determine the total kinetic energy of the molecules and the temperature of the gas.

Calculate the uncertainty in position with uncertainty in momentum within 0.1% for a tenis ball weighing 0.2 kg and moving with a velocity of 10m/sec.

The mean free path of oxygen molecule at NTP is 9.5 times 10^-6 cm What will be the time between two consecutive collisions of an oxygen molecule?( R=8.3 times 10^7 erg.mol^-1.K^-1 )