Laser is produced by – McqOptions

MCQOPTIONS

1.	Laser is produced by
A.	graphite
B.	ruby
C.	diamond
D.	emerald
Answer» C. diamond

Discussion

No Comment Found

Related MCQs

Laser Light is different from others because
If the empirical formula for the observed wavelengths (λ)for hydrogen is 1/λ = R(1/22 - 1/n2), where 'n' is integral values higher than 2, then it represents the _____________ spectral series.
If the energy of the electron in the 1st orbit of hydrogen is -13.6 eV, then how much is the energy (in eV) in the 2nd orbit?
Calculate the wavelength (in nm) of the spectral line of Lyman series for n = 2. (Rydberg constant = 1.1 x 107 m-1)
Louis de Broglie argued that the electron in its circular orbit must be seen as a particle wave, whose wavelength is equal to _______ , where 'p' is the magnitude of the electron’s momentum and 'h' is Planck's constant.
In Rutherford's gold foil experiment which of the following were directed towards the gold foil?
In whose theory the first postulate states that an electron in an atom could revolve in certain stable orbits without the emission of radiant energy?
Calculate the wavelength (in nm) of the spectral line of Lyman series for n = 3. (Rydberg constant = 1.1 × 107 m-1)
Laser is produced by
If the empirical formula for the observed wavelengths for hydrogen is 1/λ = R(1/12 - 1/n2), where n is integral values higher than 1, then it represents the _____________ spectral series.