Match the following:

Column I	Column II
A. X-rays	1. $\mathrm{v}={10}^0-{10}^4$ $\mathrm{Hz}$
B. Ultraviolet wave (UV)	2. $\mathrm{v}={10}^{10}$ $\mathrm{Hz}$
C. Long radio waves	3. $\mathrm{v}={10}^{16}$ $\mathrm{Hz}$
D. Microwave	4. $\mathrm{v}={10}^{18}$ $\mathrm{Hz}$

 

	A	B	C	D
1.	4	1	3	2
2.	1	4	2	3
3.	1	4	3	2
4.	4	3	1	2

A 25-watt bulb emits monochromatic yellow light with a wave length of 0.57µm. The rate of emission of quanta per second would be :

1. 7.17×10^-19 s^-1

2. 4.13×10¹⁶s-¹

3 . 7.17×10¹⁹ s^-1

4 . 1.26 ×10²⁰s^-1
${\mathrm{}}^{}$

The wavelength of light emitted when the electron in a H atom undergoes the transition from an energy level with n = 4 to an energy level with n = 2, is :

1. 586 mm

2. 486 nm

3. 523 nm

4. 416 pm

The wave number for the longest wavelength transition in the Balmer series of atomic hydrogen would be -
1. \(1 .   1 . 52   \times   \left(10\right)^{6}   m^{- 1}\)
2. \(2 .   3 . 14   \times   \left(10\right)^{6}   \left(cm\right)^{- 1}\)
3. \(3 .   15 . 2   \times   \left(10\right)^{6}   m^{- 1}\)
4. \(4 .   1 . 52   \times   \left(10\right)^{6}   \left(cm\right)^{- 1}\)

If the photon detector receives a total of 3.15$\times {10}^{-18}$ J from the radiation of 600 nm,
the number of photons received by the detector would be: 

$1.$ ${10}^2$
$2.$ $10$
$3.$ $50$
$4.$ $20$

If the velocity of the electron is 1.6 × 10⁶ ${\mathrm{ms}}^{-1}$. The de Broglie wavelength associated with this electron is:  

$1.$ $590$ $\mathrm{pm}$
$2.$ $455$ $\mathrm{pm}$
$3.$ $512$ $\mathrm{pm}$
$4.$ $401$ $\mathrm{pm}$

Match the ensuing rules with the corresponding statements:

Match the quantum numbers with the information provided by them:

Match the following species with their corresponding ground state electronic configuration.