If the work function of a photo metal is 6.825 eV . Its threshold wavelength will be $(c = 3 \times 10^{8} m / s)$

see full answer

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*

An Intiative by Sri Chaitanya

1200 $\overset{o}{A}$

1800 $\overset{o}{A}$

2400 $\overset{o}{A}$

3600 $\overset{o}{A}$

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

$λ_{o} = \frac{12375}{6 .825} = 1813 \overset{o}{A} \approx 1800 \overset{0}{A}$

Watch 3-min video & get full concept clarity