The wavelength of D1 and D2 lines emitted by Sodium vapour lamp is:
A. 589.6, 589 nm
B. 589 nm, 589.6 nm
C. 589.3 nm, 589 nm
D. 589 nm, 589.3 nm
Answer:A
The wavelength of D1 and D2 lines emitted by Sodium vapour lamp is:
A. 589.6, 589 nm B. 589 nm, 589.6 nm C. 589.3 nm, 589 nm D. 589 nm, 589.3 nm