Tv channel 2 broadcasts in the frequency range 51 to 57 mhz. what is the corresponding range of wavelengths? (let us denote the minimum and maximum wavelengths by λmin and λmax, respectively.)

Explanation:

The frequency range of the TV channel,

We need to find the corresponding range of wavelengths. The relation between the frequency and the wavelength is given by :

For minimum frequency

For maximum frequency,

So, the corresponding wavelength range is from 5.88 m to 5.26 m. Hence, this is the required solution.

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

it would be kevlar ^^