Q.
The threshold wavelength for photo electric emission from a material is 5000 A∘. Photo electrons will be emitted when the material is illuminated with monochromatic radiation from
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
100 watt infrared lamp
b
1 watt infrared lamp
c
50 watt sodium vapor lamp
d
50 watt ultra violet lamp
answer is D.
(Unlock A.I Detailed Solution for FREE)
Detailed Solution
The lamp which will produce light of wavelength less than 5000 A∘ is used uv lamp is used
Watch 3-min video & get full concept clarity