Answer:
M = 222 fringes
Explanation:
given
λ = 559 n m = 559 × 10⁻⁹ m
radius = 0.026 mm = 0.026 ×10⁻³ m
length of the glass plate = 22.1 ×10⁻² m
using relation
= 221.79
= 221 (approx.)
hence no of bright fringe
M = m + 1
= 221 +1
M = 222 fringes
<h2>Answer:</h2>
<u>Blue main Sequence stars have the greater initial mass</u>
<h2>Explanation:</h2>
Blue main sequence stars are the stars with surface temperatures of 20,000 to 50,000 Kelvin and can be 25 times larger than the Sun. They are extremely hot so they have blue color. The best example of this type of stars is Rigel which is the brightest star in the constellation of Orion.