How many `50%` absorption layers are there in the plate reducing the intensity of a narroe `X`-ray beam `eta = 50` times?

A gas consisting to rigid diatomic molecules is expanded adiabatically. How many times has the gas to be expanded to reduce the root mean square velocity of the molecules eta = 1.50 times ?

Find the thickness of aluminium layer which reduces by half the intensity of a narrow monochromatic X -ray beam if the corresponding mass absorption coefficient is mu//rho = 0.32 cm^(2)//g .

What will be the reduction in area if the sides of the rectangular are reduced by 50%

How many times will the intensity of a narrow X -ray beam of wavelength 20pm decrease after passing through a lead plate of thickness d = 1.0 mm if the mass absorption coefficient for the given radiation wavelength is equal to mu//rho = 3.6 cm^(2)//g ?

X-ray beam of intensity I_(0) passes through an absorption plate of thickness d. If absorption coefficient of material of plant is mu , the correct statement regarding the transmitted intensity l of X-ray is

The two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If the intensity of one of the sources is reduced by 50% by reducing its width then the intensity of light at the same point will be

The two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If the intensity of one of the sources is reduced by 50% by reducing its width then the intensity of light at the same point will be

The two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If the intensity of one of the sources is reduced by 50% by reducing its width then the intensity of light at the same point will be