Fourth Order

Choose the correct answer from the bracket determine the order and degree of the differential equation, 2x(d^4y)/dx^4+5x^2(dy/dx)^3-xy=0 a)Fourth order, first degree b)Third order, first degree c)first order, fourth degree d)first order, third degree

In Fresnel's biprism experiment, the source contains two wavelength 6000 Å and 5000 Å. The fourth order bright fringe of first wavelength is at a distance of 3 mm from the central band. The distance of the same order of bright band of second wavelength from the central band is

In a double-slit experiment, two parallel slits are illuminated first bylight of wavelength 400 nm and then by light of unknown wavelength. The fourth-order dark fringe resulting from the known wavelength of light falls in the same place on the screen as the second-order bright fringe from the unknown wavelength. The value of unknown wavelength of light is

In a double-slit experiment, two parallel slits are illuminated first bylight of wavelength 400 nm and then by light of unknown wavelength. The fourth-order dark fringe resulting from the known wavelength of light falls in the same place on the screen as the second-order bright fringe from the unknown wavelength. The value of unknown wavelength of light is