Question

Match the constants given in column I with their values given in column II and mark the appropriate choice.

	Column I		Column II
(A)	Rydberg constant	(i)	6.626 × 10−34Js
(B)	Planck’s constant	(ii)	3.00 × 108ms−1
(C)	Velocity of light	(iii)	750 × 10−9m
(D)	Wavelength of red light	(iv)	109, 677cm−1

• A. (A)$\rightarrow$ (iii), (B)$\rightarrow$ (ii), (C)$\rightarrow$ (i), (D)$\rightarrow$ (iv)
• B. (A)$\rightarrow$ (ii), (B)$\rightarrow$ (iv), (C)$\rightarrow$ (i), (D)$\rightarrow$ (iii)
• C. (A)$\rightarrow$ (i), (B)$\rightarrow$ (iii), (C)$\rightarrow$ (iv), (D)$\rightarrow$ (ii)
• D. (A)$\rightarrow$ (iv), (B)$\rightarrow$ (i), (C)$\rightarrow$ (ii), (D)$\rightarrow$ (iii)

Answer 1

Answer: (D)

(A)$\rightarrow$ (iv), (B)$\rightarrow$ (i), (C)$\rightarrow$ (ii), (D)$\rightarrow$ (iii)

Answer 2

: Rydberg constant , $= 109,677cm^{- 1}$

Planck’s constant, $= 6.626 \times 10^{- 34}Js$

Velocity of light , $= 3.00 \times 10^{8}ms^{- 1}$

Wavelength or red light

$= 750 \times 10^{- 9}m$