Answer:
3.28 degree
Explanation:
We are given that
Distance between the ruled lines on a diffraction grating, d=1900nm=
Where 


We have to find the angular width of the gap between the first order spectrum and the second order spectrum.
We know that

Using the formula
m=1


Now, m=2





Hence, the angular width of the gap between the first order spectrum and the second order spectrum=3.28 degree
Answer:
The number of freely-moving neutrons decreases over time.
The number of freely-moving neutrons decreases over time.
Explanation:
Answer: 90 meters
Explanation: 60/20=3 and 3*30=90 so it is 90 meters.
Answer:
the distance between the particles and also the amount of electric charge they carry.
Explanation:
yup
When sphere A and B are brought in contact and separated, charge on each sphere becomes [2x10^-6 + (-4x10^-6)]/ 2 = -1x10^-6 C.
That is, charge is equally separated and is the average of charges on both spheres. The reason behind equal charge on both spheres after separation is, when they are kept in contact, their potential difference becomes same.