use ? = ?D/d
93) Two slits are made one millimetre apart and the screen is placed one metre away. Blue green light of wavelength 500 nm. is used . what should the width of each slit be to obtain 10 maxima of the double slit pattern within the central maximum of the single slit pattern
Answer is:
0.2
Explanation:
Related Optics MCQ with Answers
Answer is:
2.9??10?7rad
Explanation:
use 1/(/theta)=D/1.22 ?
Answer is:
18 m
Explanation:
use Z = d2/ ?
Answer is:
589 nm, 3??108?m/s
Explanation:
v=wavelength*f (v is velocity)
f remains constant for refracted ray
refractive index water/refractive index air=1.33/1=wavelength of incident/wavelength of refracted ray
1.33=589/wavelength
wavelength=589/1.33=442.85nm
frequency=v/wavelength=3*10^8/589*10
=5.0933*(10^15)Hz
note f remains constant so you can use eqn for refracted ray by finding vel of refracted ray
Answer is:
444 nm, 2.26?108?m/s
Explanation:
v=wavelength*f (v is velocity)
f remains constant for refracted ray
refractive index water/refractive index air=1.33/1=wavelength of incident/wavelength of refracted ray
1.33=589/wavelength
wavelength=589/1.33=442.85nm
frequency=v/wavelength=3*10^8/589*10
=5.0933*(10^15)Hz
note f remains constant so you can use eqn for refracted ray by finding vel of refracted ray