Wave motionHard
Question
An X-ray tube with Cu target is operated at 25 kV. The glancing angle for a NaCl. Crystal for the Cu Kα line is 15.8o. Find the wavelength of this line.
(d for NaCl = 2.82
, h = 6.62 × 10-27 erg-sec)
(d for NaCl = 2.82
, h = 6.62 × 10-27 erg-sec)Options
A.3.06
B.1.53
C.0.75
D.None of these
Solution
According to Bragg, S law ⇒ 2dsin θ = nλ n = 1 for first order
⇒ 2 × 2.82 sin 15.8 = λ = 5.64 × 0.2723
= 1.53
⇒ 2 × 2.82 sin 15.8 = λ = 5.64 × 0.2723
= 1.53
Create a free account to view solution
View Solution FreeMore Wave motion Questions
When two tuning forks are sounded together x beats/sec are heard frequency of A is n. Now when one prong of B is loaded ...The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature T (Kelvin) and mass m, i...A, B and C are three tuning forks the frequency of A is 350 Hz. a and B produce 5 beats/sec. While B and C produce 4 bea...Two wires are fixed in a sonometer. Their tensions are in the ratio 8 : 1. The lengths are in the ratio 36:35. the diame...Two waves Y1 = asinωt and Y2 = asin(ωt + δ) are producing interference, then resultent intensity is propo...