Students want to construct a scattering experiment using a powerful source of 5.5-MeV alpha particles to scatter from a gold foil. They want to be able to count 1 particle/s at 50 degrees, but their detector is limited to a maximum count rate of 2000 particles/s. Their detector subtends a small angle. Will their experiment work without modifying the detector if the other angle they want to measure is 6 degrees? Explain.

we know our detector is limited to a maximum count rate of 2000 particles/s, and we would expect the count of 4252 particles/s as angle of 6 degree. That means we would have to modify our detector if we want to measure proper count number.

Explanation:

To get the number of particle  scattered per unit area, N(Ф) into the ring at the scattering angle Ф is

Ф = tet

N(tet) =

We can first calculate ratio of scattered particles at 50 and 6 degree angles using the equation

from there we can calculate number of scattered particles at 6 degree

we know our detector is limited to a maximum count rate of 2000 particles/s, and we would expect the count of 4252 particles/s as angle of 6 degree. That means we would have to modify our detector if we want to measure proper count number.

when cloud cover increases then the suns ray's which provides the earth with light and warmth gets covered due to the due to the suns ray's being blocked, the temperature in that region

therefore to conclude i would like to say that,

=more the cloud cover, the lesser the

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explanation: