Maximum energy is evolved during which of the following transitions ?

Trilobites were evolved during which of the following period

Maximum energy is released during conversion of

Maximum energy is released during conversion of

Trilobits evolved during :

Angiosperms evolved during

Angiosperms evolved during

The ionization energy of the electron in the hydrogen atom in its ground state is 13.6 eV. The atoms are excited to higher energy levels to emit radiation of 6 wavelengths. During which of the following transitions will the maximum wavelength radiation be emitted ?

Maximum energy is consumed during formation of