Q.
Yellow light emitted from a sodium lamp has a wave length(λ) of 580 nm. Calculate wave number (v¯) of the yellow light.
see full answer
Want to Fund your own JEE / NEET / Foundation preparation ??
Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*
An Intiative by Sri Chaitanya
a
1.927×105 cm-1
b
1.724×104 cm-1
c
1.0021×10-5 cm-1
d
2.147×10-4 cm-1
answer is B.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
Frequency, v=cλ1 nm=10-9 m580 nm=580×10-9 m=580×10-7 cm Wave number, V¯=1λ=1580×10-7 cm=1.724×104 cm-1
Watch 3-min video & get full concept clarity