How many wavelength are emitted by atomic hydrogen in visible range `(380 nm - 780nm)` ? In the range `50nm to 100 nm`?

Suppose in certine condition only those transition are allowed to hydrogen atoms in which the principal quantum number a changes by 2 (a) Find the smaller wavelength emitted by hydrogen (b) list the wavelength emitted by hydrogen in the visible range (380 nm to 780 nm)

Suppose in certine condition only those transition are allowed to hydrogen atoms in which the principal quantum number a changes by 2 (a) Find the smaller wavelength emitted by hydrogen (b) list the wavelength emitted by hydrogen in the visible range (380 nm to 780 nm)

Find the wavelength in a hydrogen spectrum between the range 500nm to 700nm

How many photons are emitted per second by a 5 mW laser operating at 620 nm ?

Assertion :The spectral series 'Blamer' of the of the hydrogen atom lies in the visible region of the electromagnetic spetrum Reason :Wavelength of light in the visible region lies in the range of 400 nm to 700 nm

The wavelength of light absorbed by Pr form of phytochrome is (A) 680 nm (B) 720 nm (C) 620nm (D) 640nm

The wavelength of a radiation emitted by a sodium lamp is 600 nm. Find the frequency ?

How many photons are emitted per second by a 5 m W laser source operating at 632.8nm?

The wavelength of light absorbed by Pr form of phytochrome is (a) 620 nm (b) 640 nm (c) 680 nm (d) 720 nm

White light is incident normally on a glass plate of thickness 0.50 xx 10^(-6) and index of refraction 1.50. Which wavelength in the visible region (400 nm - 700 nm) are strongly reflacted by the plate ?