Work done (W) = $\vec{F} \times \vec{x} = (-2\hat{i} + 3\hat{j}) \times (3\hat{i}) = -6 \text{ J}$.
Work-energy theorem: W = ΔKE = KEf - KEi = -6 J = KEf - 10 J KEf = 4 J
List I (Spectral Lines of Hydrogen for transitions from) | List II (Wavelength (nm)) | ||
A. | n2 = 3 to n1 = 2 | I. | 410.2 |
B. | n2 = 4 to n1 = 2 | II. | 434.1 |
C. | n2 = 5 to n1 = 2 | III. | 656.3 |
D. | n2 = 6 to n1 = 2 | IV. | 486.1 |
The following diagram shown restriction sites in E. coli cloning vector pBR322. Find the role of ‘X’ and ‘Y’gens :