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Optics
When electron strikes with Al plate which photon is emitted'
Optics
a photon of wavelength 12.7 xi 5 m-1 is eminded when it jump from higher to n= 1, what will be higher orbit
a)n=5
b)n=2
c)n=3
d)n=4
a)n=5
b)n=2
c)n=3
d)n=4
Optics
The fsd of a moving coils instrument is 20amperes calculate the value of the resistance to be connected to it in other to measure 5kv if its internal resistance is 20ohms
Optics
A ray of sodium light at 589nm is incident on a rectangular slab of crown glass at an angle of 45
Optics
Interference fringes are produced with monochromatic light falling normally on a wedgeshaped film of refractive index 1.4. The angle of the wedge is 10 seconds of an arc and
the distance between the successive fringes is 0.5 cm. Calculate the wavelength of light
used.
Optics
What is the definition of Angular Spread
Optics
For a simple square lattice, the kinetic energy of a free electron at a corner of the first zone is higher than that of an electron at the
mid point of a side face of zone by a factor of ________
mid point of a side face of zone by a factor of ________
Optics
CONSIDER THE WAVE FUNCTION Y X , T = 0.015COS 8X-80T CALCULATE THE PARTICLE VELOCITY AND PARTICLE ACCELERATION AT Y 0.01 , 0.4)
Optics
light of wavelength 450 nm is incident on a diffraction grating on which 5000 lines can ruled out determine the angle corresponding to third order
Optics
polarization explains light is a) magnetic b) electric c)both
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#340153 on Dec 2023
#340153 on Dec 2023