Suppose that a hydrogen atom in the ground state absorbs a photon of wavelength 16.4 nm . if the atom is ionized, what will be the kinetic energy of the electron when it gets far away from its atom of origin? the value of ¯h is 1.05457 × 10−34 j · s ; the speed of light is 2.99799 × 108 m/s ; the value of h is 6.62607 × 10−34 j · s ; the rydberg constant for hydrogen is 1.09735 × 107 m−1 ; the bohr radius is 5.29177 × 10−11 m ; and the ground state energy for hydrogen 13.6057 ev . 1 ev = 1.60218 × 10−19 j . answer in units of ev.

gas and liquid

c. magnitude and direction

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.