Question

The momentum of the photon of wavelength 5000Å will be(a) 1.3×10⁻²⁷ kg -m/sec(b) 1.3 ×10⁻²⁸ kg -m/sec(c) 4×10²⁹ kg -m/sec(d) 4×10⁻¹⁸ kg -m/sec

Answer 1

apply formula
$p = h \div lambda$
refer to the attachment...

happy helping mate