\(last \,= 2n \)
\(n, \,n \,+ \,5, \,n \,+ \,10, \,n \,+ \,15 \,…… 2n \)
\(l = a \,+ \,(N \,-\,1) \,r \,\,\,\)
where \(\,l =\) Last term, \(a = \,\)First term, \(\,N = \,\)Number of term, \(\,r \,= \,\)Common difference
\(2n = n \,+ \,(41 -1) \,5\)
\(2n = n + 200\)
\(n = 200\,\,\,\,\,\, 2n = 400\)
$y=\left(10 \cos \pi x \sin \frac{2 \pi t }{ T }\right) cm$
$x=\frac{4}{3} cm$ આગળ રહેલા કણનો કંપવિસ્તાર.....$cm$ હશે
$\left(\mathrm{R}=8.3 \mathrm{JK}^{-1}, \gamma=1.4\right.$આપેલ છે.)